RSC Bulletin 1972 v 1-3 - The Rhododendron Society of Canada

Rhododendron
Society
of
Canada
\
Bulfetin 1972
Volume1
Number3
Soci6t6
Canadienne
du
Rhododendron
Canadian
Grown
Rhododendrons
We offer for salethe largestvarietyof
h a r d yr h o d o d e n d r o nasn d a z a l e a s
p r o d u c e di n E a s t e r nC a n a d a .
work goesback thirty-f ive
Our research
yearsS
. o m eo f o u r f i r s t p l a n t i n g sa r e
n o w a h e a l t h ys e v e nf e e t i n h e i g h ta n d
spread.
O u r a n n u a pl r o d u c t i o no f y o u n gp l a n t s
i s f r o m c u t t i n g st a k e nf r o m p l a n t st h a t
h a v ea l r e a d yp r o v e nt h e i r w o r t h i n o u r
W o o d l a n dT r r a lG r o u n d s .
Connoisseurs
N e w a n d r a r ev a r i e t i e as r ed i f f i c u l t t o
o b t a i n .W r i t et o u s a b o u tt h e m .W e m a y
b e a b l et o s e c u r et h e m f o r Y o u .
I n a d d i t i o nw e p r o d u c ea w i d e
assortmentof trees,shrubs,evergreens
a n d h e r b a c e o uPsl a n t s .
W R I T EF O R C A T A L O G U E
WOODLANDNURSERIES
2 1 5 1 C a m i l l aR o a d
Ontario,Canada
M ississauga,
Rhododendron
Society
of
Canada
Soci6t6
Canadienne
* d u
Rhododendron
OFFICERS
HonoraryPresidents
D r . E . F .P a l m e r
Dr.L. Laking
President
W . J .B r e n d eir B r a n d i s
Vice-President
K. Duncan
B u l l e t i nE d i t o r
L. Hancock
PublicRelationsOfficer
L. Sherk
ResearchConsultatant
K. Begg
SecretaryTreasurer
D r . H . G .H e d g e s
DIRECTORS
A . P .C r a i g
D r . D . L .C r a i g
R . R .F o r s t e r
R . E .H a l w a r d
D r . H . G .H e d g e s
D r . R . J .H i l t o n
P r o f .j . R o n s l e y
L. Sherk
C a p t .R . M .S t e e l e
A. Tadeson
M r s .J . R . M W
. ilson
P u b l i s h e dt h r e e t i m e s y e a r l y b y t h e R h o d o d e n d r o n
S o c i e t y o f C a n a d a ,P . O . B o x 5 0 0 4 , B u r l i n g t o n ,
O n t a r i o , w h i c h i s t h e a d d r e s sf o r g e n e r a lS o c i e t y
i n f o r m a t i o n . M e m b e r s h i ps u b s c r i p t i o n ss h o u l d b e
m a i f e d t o t h e T r e a s u r e r ,D r . H . G . H e d g e s , 4 2 7 1
L a k e s h o r eR o a d , B u r l i n g t o n , O n t a r i o . T h e B u l l e t i n
o f t h e R h o d o d e n d r o n S o c i e t y o f C a n a d ai s
i n c l u d e d a s a b e n e f i t o f m e m b e r s h i p .P e r m i s s i o n
to reprint any portion of this volume must be
obtainedin writing.
Page 2
CONTENTS
Page 3
E d i t o r i aC
l omment
Down to EarthAdvice
bY CaPtainR.M' Steele
of lhe DeciduousAzaleas
The Development
'f
P a r t1 h e G h e n ta n d M o l l i sA z a l e a s
bYKenDuncan.....
R h o d o d e n d r o na st V i n e l a n d
R . A . F l e m i n ga n d K . S ' B e g g '
,)
1
1t
HardYAzaleas
Propagating
b y D . L . C r a i ga n d R . J ' N e w b e r Y
T h e Q u e s ft o r a T r u l y H a r d yY e l l o wR h o d o d e n d r o n
bY L. Hancock ' " '
g hododendrons
D i s e a s eosf S e e d l i n R
b YW . J .B r e n d e)r B r a n d i s
G r o w i n gR h o d o d e n d r o nf rso m S e e du n d e rA r r i f i c i a lL i g h t
b YR . H a l w a r d . . ' '
T h e S t a r to f t h e ( S l i d e )L i b r a r y
by R. Behring
RegionalNotes .
H a l i f a xb y C a p t a i nR . M 'S t e e l e
M o n t r e abl y P r o f e s s oJr. R o n s l e Y
M i d l a n dO
, n t a r i ob Y E . E g e l k r a u t
Winnipeg
r o e st o B . C '
B r i t i s hC o l u m b i ab y R o y F o r s t e g
N e wM e m b e r s. . ' . .
IJ
15
11
19
20
22
28
ILLUSTRATIONS
1L
PropagatingHardy Azaleasfrom Softwood Cuttings
Rhododendron chrYsanthum. . . .
11
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lf o r B u l l e t i nt o L . H a n c o c k , 2 1 5 1
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C a m i l l a R d . M i s s i s s a u g aO, n t '
Page 3
E D I T O R I A LC O M M E N T
S i n c et h e p u b l i c a t i o no f o u r l a s t b u l l e t i nw e h a v ep a s s e dt h e f i r s t m i l e s t o n e
of our
history,the birthdayof the formation of our Societyon October30th,1971.As our
H o n o r a r yP r e s i d e nDt r . F r a n k P a l m e rs a i di n o u r f i r : s tb u l l e t i n- " W e a r eo n o u r w a y
, e n t r a lC a n a d aa, n d B r i t i s hC o l u m b i at o g e t h e rw i l l
a n d , h o p e f u l l y ,t h e M a r i t i m e sC
build a strongSociety."
The aim of your Executiveand Directorsis that the Society will be a medium to
p r o v i d es o m e t h i n go f l a s t i n gb e n e f i tt o a l l i t s m e m b e r sE
. v e nd e e p e rl t h i n k , i s t h e
hope that 0s 0 country we may make a positivecontributionto world knowledgeand
a p p r e c i a t i oonf t h e b e a u t i f ugl e n u sR h o d o d e n d r o n .
e a i n e dw i t h p e o p l ei n c o u n t r i e o
T o d o t h i s w e m u s t n o t o n l y s h a r ea n y k n o w l e d g g
sf
s i m i l a rc l i m a t e ,b u t a l s o i n v i t e r h o d o d e n a r i a ni ns t h e s el a n d st o c o n t r i b u t et h e i r
knowlegeto our pages.In this way all areenriched.Quite apartfrom havingbeautiful
plantsand flowers in our gardens,there will be an increasing
senseof international
friendship.
A t t h e p r e s e nt i m e t h e s em a y b e b u t d r e a m sa n dh o p e sb, u t h o p e sw h i c hw i l l b e c o m e
reality if we steadilywork toward that end. The first step is to developour own
as a nationalentity. In this issuewe are startinga column of Regional
consciousness
Notes.This can be developedto representmany communitiessmalland large.
Make up your own activegroupevenif it is lessthan half a dozenmembers.Sizeis not
necessarily
the criterion:beingan activepart of the wholeSocietyis what counts.
A M e r r yC h r i s t m aasn d H a p p yN e wY e a rt o a l l .
D O W NT O E A R T HA D V I C E
CaptainR.M. Steele Halifax, Nova Scotia
Nova Scotia'ssoil, and the climate, are particularlysuitablefor a wide range of
ericaceousplants. We could quite easilyattain world renown for beautifulgardens
employingtheseplantsgrown in settingsof their naturalhabitat.
There are a substantialnumberof rhododendrons
which performwell and givea great
deal of satisfactionin this particulararea.Some require some protectionand some
shade.The majority prosperand bloom magnificentlyin full sun.Nearly all benefit
from limited protectionagainstwinter sun and any dessicatilrg
dry windswhich should
occur while their roots are solidly frozen.There are a numberthat will standthese
conditionsand worse,yet still perform beautifullyif providedwith acceptablebasic
requirements.
Page 4
g r o w i n gr h o d o d e n d r o n s :
L e t u s c o n s i d etrh e b a s i cr e q u i r e m e n ft os r
for thesep|ants:Drainage,Moisture,Light,
There are certain abso|uterequirements
Acidity.
Drainage:ltisessentialtotheseplantstohaveasupplyofairaroundtheirroots'
anysoilorcontainerwhichpermitswatertostandontherootsdrownsthep|an
T h e y c a n b e s u c c e s s f u l t y g ' o * n o n c l a y s o i l b y b u i l d i n g u p b e d s o ft h
hum
a |ul tsh(ep e a t m o
, r a v e+| s a n d )a b o v et h e c | a ys o a t
+ s a n d+ s o i l ; o r ,| e a fm o u I d ,w o o d sr u b b | e g
excesswaterdrainsfrom the root area'
Thesha|yloamandgravel|yloamandthestony-sandysubsoilinthisareaareex
fortheseplants,providedc|aysoiIhasnotbeenaddedtotheextentthatite|imin
f a i r l yr a p i dP e r c o l a t i o n .
Theplantsaredoomedtofairlyrapiddeclineanddeathwhenp|antedingoodsoi
in a clay pocketwhich holdsthe water'
moisture from the soil to replacethe
Moisture: Rhododendronsrequire continual
are continually transpiringinto the
moisture which the large evergreenleaves
a t m o s p h e r e . o u r r a i n f a l [ i n t h i s a r e a i s u s u a | l y e n t i r e | y s u f f i cplants'
i e . n t fln
o rlong
theirneed
for the
moistureavailable
there is enoughhumusin the soil to hold that
dryspel|sagoodwateringwhichwetsthesoiltoseveralinchesisanadvantage
p|ants.Therootsshou|d"neverbepermittedtoentirelydryout;howeverinhot
w e a t h e r i t i s n o t u n u s u a | t o s e e t h e n e w | e a v e s i n a s o m e w h a t wdistress;
i l t e d c oifn d i t i o
night they are not in significant
midday. lf they O.r* rO againduring the
water'
they do not, they are in immediateneedof
AsubstantialdroughtinJu|yandAugustwilloftensendthep|antintodorma
H e a v y r a i n s a n d w a r m * . u t h . , i n S e p t e m b e r m a y b-r i n g t h e r h o d o d edamage
n d r o n ican
ntoaf|us
freeze then substantial
of growth, and if this is followed by an early
p
l
a
nts
c o l dn i g h t s( b e l o w4 2 o F ) k e e p st h e
o c c u r .S i m i l a r l yi f a l o n g ,w a r mf a l l w i t h o u t
cold
winter, then they are hit by very
from hardening-offanJ conditioningfor the
damage'
substantial
deepfreezingweather,this alsocan causevery
processby which the
for the photo-synthesis
Light: Rhododendronsrequire light
than that of someother plants,and
plant livesand grows.Their requirementis less
theycansurviveinquiteabitofshade.However,insufficient|ightwillweaken
p | a n t a n d e v e n t u a | | y k i | l i t . T o o m u c h d i r e c t s u n w i l l h a v e t h e s a mcannot
eeffecton
damagesthe leavesso that they
rhododendrons,where heavy sun scalding
p e r f o r m t h e p h o t o . s y n t h e s i s f u n c t i o n ' t h e m a i o r i t y o f r h o d o d e n d r o n s t h full
atareha
the day and many of them can stand
in this climatebenefitfrom somesunduring
sun.
Theamountofsunlightarhododendrongetshasadirecteffectonthegrowthando
itsblooming.Themoresun|ightap|antreceiveswithoutdamage,themoreco
Page 5
t h e g r o w t h a n d t h e m o r e p r o f u s et h e b l o o m .A l s o t h e p l a n t w i l l b e e n c o u r a g etdo
, w e v e rl,a s tl o n g e ri n p a r t i a l
b l o o m a t a n e a r l i e ra g e . T h ef l o w e r so f r h o d o d e n d r o nhs o
shade.
T h e o r i g i n ahl a b i t a to f t h e p a r t i c u l arrh o d o d e n d r o n sa'ns c e s t o rwsi l l t e l l t h e a m o u n to f
which originatedfrom the baldat the top of
sun that it prefers(i.e.the R.catawbiense
which
camefrom the bald top of Mt. Miyanoura
Roan Mtn. and the R.yakusimanum
i n J a p a n ,t h r i v e i n f u l l s u n .R . m a x i m u ma n d o t h e r st h a t n o r m a l l yg r o w i n s o m et a l l
s h a d ep, r e f e rp a r t i a sl h a d e ) .
A c i d i t y : l f t h e s o i l i s n o t s u i t a b l ya c i d( i . e .p H 5 . 5 o r l o w e r ) ,t h e r h o d o d e n d r ocna n n o t
a s s i m i l a tteh e v e r y ,v e r y s m a l la m o u n to f i r o n t h a t i s e s s e n t i at ol t h e l i f e o f t h i sp l a n t .
T h e y c a n b e g r o w n i n s o i l t h a t p r o h i b i t st h e m o v e m e not f i r o n i n t o t h e p l a n t si f i t i s
providedby sprayingthe foliageat appropriateintervalswith a solutioncontaining
arrangement
if any other permanentcorrection
chelatediron. This is an unsatisfactory
can be made.
e c t i o n sw h i c hc a nb e s a t i s f a c t o r i ul yn d e r t a k eanr et h e a l t e r a t i o n
A c o u p l eo f c o r r e c t i v a
r s ea l u m i n u ms u l p h a t e. )
o r w i t h s u l p h u r( n e v e u
o f t h e p H w i t h f e r r o u ss u l p h a t e
B u y i n gR h o d o d e n d r o n s
W h e n p u r c h a s i n rgh o d o d e n d r o n st h, e p l a n t ss h o u l dh a v ea g o o d f i r m b a l l o f m o i s t
e a r t h ,c o m p l e t e l yf i l l e d w i t h c l o s eg r o w i n gf i b r o u sr o o t s .l t s h o u l db e f i r m l y w r a p p e d
t a t e r l o g g i nogf t h e r o o t s .
e h i c h h a sd r a i nh o l e st o p r e v e nw
i n b u r l a p ,o r p o l y e t h y l e n w
C o n t a i n egr r o w n p l a n t sc a n b e e n t i r e l ys a t i s f a c t o r yb,u t u n l e s sy o u k n o w t h e g r o w e r
t o b e a c o m p e t e n ta n d c a r e f u lp l a n t s m a ny, o u w i l l p r o b a b l yg e t a p l a n t b e l o wt h e
q u a l i t ya n d h e a l t ho f a g o o df i e l d g r o w nr h o d o d e n d r o n .
T h e p l a n t i t s e l f s h o u l d b e c o m p a c t ,b r o a d a n d w i t h t h i c k , s t r o n gb r a n c h e sT. h e y
A.l t h o u g hi n s e c td a m a g et o t h e
s h o u l dh a v eg o o d f o l i a g ea n d a h e a l t h ya p p e a r a n c e
p r e v i o u sy e a r ' sl e a v e si s n o t g e n e r a l l yo f a n y r e a l c o n s e q u e n cIep, r e f e ru n d a m a g e d
o la n t s .
T h e p l a n t ss h o u l db e k e p t o u t o f t h e s u n a n d w i n d a n d i n a c o o l p l a c ea n d p l a n t e da s
s o o n a s p o s s i b l el .f t h e y s e e mt o b e d r y i n go u t - s o a kt h e m i n a p a i l o f w a t e rf o r a
c o u o l eo f m i n u t e sb u t d o n o t l e t t h e m s t a n di n t h e w a t e r a n d m a k es u r ei t d r a i n s
c o m p l e t e l fyr o m t h e r o o t b a l l .
S i t e :T h e n u r s e r y m asnh o u l db e a b l et o a d v i s ey o u w h e t h e rt h e r h o d o d e n d r oyno u a r e
p u r c h a s i nrge q u i r e s h a d eo r c a n s t a n df u l l s u n .T h i s i s t h e f i r s t c o n s i d e r a t i of o
nr the
s i t e . H e s h o u l d a l s o a d v i s et h e e v e n t u a ls i z e o f t h e p l a n t a n d t h i s i s t h e n e x t
c o n s i d e r a t i oM
n .a r k o u t o n t h e g r o u n di t s c i r c u m f e r e n ci ne 1 5 y e a r s ' t i m e( i t w i l l
i t s h o u l db e p l a n t e da w a yf r o m
s e l d o mb e l e s st h a n 6 f e e t ) .T h i s i n d i c a t etsh e d i s t a n c e
o t h e ro b l e c t sU
. n d e rt h e r o o f l i n e . . . m a y m e a nw a t e rd e l u g ei,c i c l e so r s l i d i n gs n o w
. . . t o o c l o s et o a y o u n gg r o w i n gt r e e( o r s h r u b )c a nm e a ni n t e r f e r e n cwei t h e a c ho t h e r
a n d d e p r i v a t i oonf n u t r i e n t s. . . t o o c l o s e
. . . t o o c l o s et o a m a p l em e a n sr o o t i n v a s i o n
s
p
l
a
s
h
i
nign w i n t e r '
s
a
l
t
m
e
a
n
t r r o a dc o u l d
to thestreeo
preparation.
This is the Most lmportantAspectin the cultureof Rhododendrons
p l a n t su n l e s sy o u
Y o u c a n n o tl a t e r m o d i f y t h e s o i l t o m e e tt h e r e q u i r e m e n tosf t h e
v i g o u rt h e
r e m o v et h e p l a n t . N o s u r f a c ea m e n d m e nct a n l a t e r r e s t o r et o h e a l t h f u l
g
r
o
u
n
d
w
ork at the
s p e c i m e tnh a t h a sg r o w nl e a na n d s c r a w n yf r o m l a c k o f t h e r i g h t
t i m e i t w a sP l a n t e d .
f r o m a n a r e ao f n o t l e s s
l f v o u r s o i l i s g o o d d r a i n i n ga c i d l o a m d i g4 - 6 " o f t h i s s o l l
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Spreadon the bottom of the hole at least3" (and
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w i t h u n d e r s o i ln t h e h o l ed o w n t o a d e p t h
Mixanequalamountofthemanure,elc',withthesoilwhichyouremoved'
g o o ds a n d yl o a ma sd e s c r i b e d
l f y o u r s o i l i s c l a y o r s l o w d r a i n i n g m a k ea m i x w i t h
t h e c l a y 'D o n o t d i g a p o c k e t
a
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P l a n t i n gs: c o o po u t a d e p r e s s i oi n t h e p r e p a r e sdo i li n t h e
r
o
o
t b a l li s 4 " o r s l i g h t l ym o r e
w h e n t h e r h o d o d e n d r oins p l a c e di n I ' 1 t, h e t o p o f t h e
t h u s p l a c e ds, t a n d
t
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a b o v et h e o r i g i n a ls o i l l e v e l .W i t h t h e r h o d o d e n d r o n p o r a r i l y
w
h
i c h d i r e c t i o nt h a t
a
n
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b
e
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t
b a c k a n d s e ew h i c h s i d eo f t h e p l a n ty o u c o n s i d etrh e
shouldface.
r e m o v ei t s w r a p p i n g
W h e ny o u a r es a t i s f i e hd o w t h e p l a n ts h o u l db e p l a c e d c a r e f u l l y
the roots more
cover
not
does
it
that
so
ball
root
the
and then place the soil about
rain will not
the
that
so
soil
replaced
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Dish
ball.
root
than 112,,abovethe top of the
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c o v e rt h e n e w s o i lw i t h 2 " m u l c h
w a t e r : c o m p l e t e l ys o a kw i t h a l i g h t s p r a ya n d t h e n
ofpineneed|es,oak|eavesorsomecoarsematerial.Donotusepeatbecause
out'
w i l l c o m eu p i n t h i sw h e ni t i s w e t a n db e k i l l e dw h e ni t d r i e s
breeding
h t a t i o nh a s m a d ee n o r m o u ss t r i d e s ' i ne s t a b l i s h i n g ,
T h e K e n t v i l l eR e s e a r cS
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w o r k i n gv o l u n t a r i l y
AmericaT
. h i s h a s b e e nd o n e b y D r . D o n C r a i ga n d G e o .S w a i n
t
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t
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Sreat
o u t s i d eo f t h e i r n o r m a l p r o g r a m .
with them.
associated
T H E D E V E L O P M E NOTF T H E D E C I D U O UASZ A L E A S
P A R TI T H EG H E N TA N D M O L L I SA Z A L E A S
Ken Duncan Don Mills.Ontario
S o m eo f t h e m o s t s p e c t a c u l af lro w e r i n gs h r u b sa v a i l a b lteo t h e k e e np l a n t s m atno - d a y
s .h e s ep l a n t sa r er e a l l yd e c i d u o ursh o d o d e n d r o n- s a
a r e t h e h y b r i dd e c i d u o uasz a l e a T
gardener.
fact which is confusingto the average
The foliageis certainlydifferentfrom
the plantsare
the usualrhododendronhybrid. However,by retainingthe word azalea,
set apart from the rest of the genus,perhapsdiminishingthe confusiona little. One
t h i n gi s s u r e ,t h e y a r ee a s i etro g r o wt h a nt h e r h o d o d e n d r ohny b r i d s .
.|50
years,hybrid deciduousazaleas
Over the last
havebeendevelopedmainly from
n i n e s p e c i e ss,i x o f t h e s en a t i v et o N o r t h A m e r i c aT. h e s ep l a n t sb e c a m ea v a i l a b l teo
E u r o p e a nh y b r i d i s t sb e t w e e n1 7 3 0 a n d 1 8 7 0 , a n d w e r e u s e db y t h e m i n d i f f e r e n t
c o m b i n a t i o ntso d e v e l o pt h e v a r i o u sh y b r i dg r o u p s .
T h e f o l l o w i n gs p e c i e sa,l l m e m b e r so f t h e s u b s e r i eLsu t e u mo f t h e s e r i e A
s z a l e aw
, ere
u s e de x t e n s i v e liyn B r i t a i n ,B e l g i u ma, n d H o l l a n df o r b r e e d i n h
gybrids:
North Americanspecies
Rhododendronarborescens(Azoleaorborescens).
Sweet azalea.Small white or white
t i n g e dp i n k f l o w e r s v, e r yf r a g r a n tB l o o m sl a t ei n J u n e- e a r l yJ u l y .T a l , .
Rhododendron calenduloceum(Azalea calendulacea).Flame azalea.Medium sized
f,rnnel shapedflowers,yellow, orange,or red. No scent.Late May - early.lune.Tall.
llhododendron nudiflorum (Azaleonudifloro). Pinxter azalea.Small tubular flowers,
w h i t et o v i o l e tr e d .S w e e ts c e n t e dM
. i d M a y .M e d i u mt o t a l l .
Rhododendronoccidentale(Azaleaoccidentolis).Westernazalea.Largeflaring tubular
f l o w e r sc, r e a m yw h i t e t o b r o n z ep i n k ,y e l l o wb l o t c h .Y e r y f r a g r a n tJ u n e T
. all.
Rhododendron speciosum (Azalea speciosa).Oconee azalea.Small funnel shaped
f l o w e r so, r a n g et o r e d .N o s c e n t M
. i d - M a y . L o wg r o w i n g .
Rhododendronviscosum(Azaleoviscosa).Swampazalea.Flower a slendertube, white
to creamwhite. Spicy fragrance.
July. Tall
Europeanspecies
Rhododendron luteum (flavum) (Azaleopontica or lutea) Pontic azalea.Small yellow
flower. Fragrant.Mid - May.Tall.
species
Japanese
Rhododendron japonicum (Azaleo mollis) Japaneseazalea.Large funnel shaped
f l o w e r s ,r e d ,o r a n g er e d ,o r o c c a s i o n a lyl ye l l o w .S l i g h t l ys c e n t e dM. i d - M a y .M e d i u m .
Chinesespecies
azalea.Large funnel shapedflowers,
Rhododendronmolle (Azaleasinensis)_Chinese
r i c h y e l l o w S l i g h t l ys c e n t e dM
. i d - M a y .N o t h a r d y .
Exceptforcolourandhardiness,R'japonicumdoesnotdiffermuchfromR'molle'
o t h e r s p e c i e s u s e d t o a l e s s e r d e g r e e , a | l N o r t h A m epossibly
r i c a n mR'
em
bersofthesu
canescens'
R.prunifolium, and
luteum, are..R.bakeri (cumberlaidense),
i s s t i l l b e i n gr e s o l v e bd y b o t a n i s t sl 't i s
T h e d i s t i n c t i o nb e t w e e ns o m eA m e r i c a ns p e c i e s
betternottoconfusetheissuebymentioningmorenames.
Rehder)
GhentAzafeas(R gandavense
o
r P o n t i c aa z a l e a s '
G
h
e
n
t
s
H
a
r
d
y
a
s
k
n
o
w
n
Also
Duringthe1820's,P.Mortier,abakerofGhent'Belgium'begancrossingR'
d u l a c e u m w i t h R . n u d i f l o r u m , a n d s o p r o d u c e d * . t v o n r t E R H Ivarious
B R l D Scombina(xMortier).
and R'viscosunrin.
He crossedthesewith R'luteum, R'speciosum'
tions.AtaboutthesametimeinEngland'.1'Gowan'gardeneratHighclere'the
o f t h e E a r | o f C a r n a r v o n , c r o s s e d R , v i s c o s u m w i t h R . l u t e utom tproduce
oproduced
R.molle with R.vrscosum
ORNATUM HyBRlDa. Gowan also crossed
A|tac|arense.IsaacDauiesnurseryman'oformskirk,Lancs.,England.produce
fromthesamecrossing.Theseaza|easwerevarietiesoftheL
VlSCoSEP
out in Britainby Loddiges' ee and
H Y B R I D S .S i m i l a r * o r i * u , b e i n gc a r r i e d
l a t e r eor f K n a pH i l l '
K e n n e d vO
, s b o u r n ea,n d M i c h a eW
l n l 8 3 4 M o r t i e r s o l d a | l h i s s e e d l i n g s t o L o u i s V e r s c h a f f e I t o f G hoef nht ywbhroi dcso' n t i n
a l s o w e r e l e a d i n gp r o d u c e r s
h y b r i d i z e .V a n c a s s e la n d V a n H o u t t e
E v e n t u a l | y G H E N T A Z A L E A S w a s t h e n a m e d e s i g n a t e d t o a | l tahsePhOyN
bT
r iIdCsAi n B e
I n H o l l a n dt h e y a r e a l s ok n o w n
a n d E n g l a n db e t w e e n1 8 2 5 a n d . l8 8 0 '
AZALEAS.
T h e n u m b e r o f h y b r i d s p r o d u c e d w a s c o n s i d e r a b l e . | n - l 8 5 0 t h eEsntgulda b
n do,o k o
e u r s e r y )i n s u r r e y
( n o w t h e S u n n i n g d a lN
S t a n d i s ha n d N o b l e N r i r . r y
r e a c h e d 5 0 0 v a r i e t i e s . S o m e o f t h e s e p l a -n t s a r e s tparticular'
i l I g r o w i Unique'
ngthere.I
one in
photographedvery large plants on the -property
originatingthere,whichisl6feethighand30feetacross.TheKnapHillNurse
i n S u r r e y , h a s s o m e v e r y I a r g e p | a n t s . T h e o r i g i n a | p | agrow
n t o finV this
i s c ocountry
s e p a | in
aissti
slture shouldnot
there.There is no reasonwhy plantsof this
time,providedthattheyareontheirownroots.ourEditor,LesHancock,hass
westof Toronto'
very largeplantsgrowingon his propertyiust
G h e n t a z a l e a s a r e u p r i g h t a n d t a | | . T h e y b r o a d e n w i t h a g eMay
. T h etob mid
|oomsarefr
June'
They bloom from late
2% incheswideancrur. ,ubrlu, and fragrant.
p
i
n
k
'
l
n
c
l
u
d
e
da r e
a
n
d
y e l l o w ,o r a n g e s, c a r l e t
T h e c o l o u r sa r e f r o m w h i t e t h r o u g h
m a u v e s ' v i o | e t r e d s a n d m a u v e p i n k s . M o s t h a v e u n d e r t o n e s o f a s20
e cto
o n25
dcolo
are very hardy' many withstanding
go well together.The Ghent azaleas
degreesbe|owzero.TheyareVeryattractive,andanoldbushinflowercans
arevery free flowering'
any of the modernlargefloweredhybrids'They
P a g e9
T.h e f o l l o w i n gi s a
T h e o l d e s tG h e n t sh a v el a t i n i z e dn a m e sa n d s o m ea r es t i l la v a i l a b l e
i
n
t
r
o
d u c t i o nB:o u q u e t
E
u
r
o
p
e
a
n
d
a
t
e
o
f
t
h
e
l i s to f p l a n t s a v a i l a bi nl eC a n a d ian c l u d i n g
-|869
C
o
V e r s c h a f f e l tp) i n k w i t h o r a n g em a r k i n g s ; c c i n e aS p e c i o s a
de Flore (before
( 1 8 3 8 S e n e c l a u s eo)r a n g er e d ; D a v i e s i( 1 8 4 0 D a v i e s )w h i t e w i t h y e l l o w m a r k i n g s ;
F a n n y( s y n .P u c e l l ac) a r m i n ep i n k w i t h o r a n g em a r k i n g sN; a n c yw a t e r e r( b e f o r e1 8 7 6
& N o b l e )b u f f o r a n g e .
A . W a t e r e rl)a r g ey e l l o w ;U n i q u e( b e f o r e1 8 5 0S t a n d i s h
, r t i c u l a r ltyh e o l d e rc l o n e sa, n d
l f o n e w i s h e st o m a k ea c o l l e c t i o no f G h e n t a z a l e a ps a
e urseries,
t r i t i n g t o t h e S u n n i n g d a lN
t h e y a r e u n a v a i l a b l ei n C a n a d a ,I s u g g e s w
W i n d l e s h a mS, u r r e y ,E n g l a n d a, n d a s k f o r t h e i r l i s t .T h e l a s to n e I s a wh a d o v e r8 0
, l l o f f e r e do n t h e i ro w n r o o t s .l m p o r t o n l y b y a i r f r e i g h t .
c l o n e sl i s t e d a
DoubleGhent Azaleas
B e t w e e n1 8 5 0 a n d 1 8 7 3 L o u i sV a n H o u t t eo f B e l g i u mn a m e ds e v e r asl m a l lf l o w e r e d
double azaleas.Thesewere raisedmainly from R.luteum and R.nudiflorumand are
.l
f r a g r a n tC
. h a r l e sV u y l s t e k eo f B e l g i u ma l s oi n t r o d u c e ds o m ed o u b l e si n 9 0 0 . P l a n t s
900
a v a i l a b l et o d a y a r e : B a r t o l o L a z z a r i( b e f o r e1 8 6 9 ) o r a n g ey e l l o w ;C o r n e i l l e( . 1
V u y l s t e k e )p a l e p i n k ; H e r i o n e P l e n a ( b e f o r e I 8 7 1 R i n z ) w h i t e a n d s h e l l p i n k ;
N a r c i s s i f l o r a( b e f o r e 1 8 7 1 V a n H o u t t e ) c l e a r y e l l o w ; Q u e n t i n M a t s y s ( 1 9 0 0
V u y l s t e k ed) a r kr o s e .
MollisAzaleas
Mollis azafeasare forms of the.lapanese azaleaR.ioponicum, and hybrids of
R.japonicum and the chinese azaleaR,molle, that is,iaponicum x molle or molle x
japonicum,as it is usuallywritten. A complicationarisesin the fact thatR.iaponicum
is also known as Azalea mollis, also R.molle is known as Azaleasinensis;therefore
Mollis hvbrids are often listed as mollis x sinensishybrids, now molle x iaponicum
hvbrids.
Van Houtte of Belgium bought seedlingsof R,ioponicumfrom P.F. van Siebold's
. u r i n gt h e 1 8 7 0 ' sh e n a m e dt w e n t yf o r m s ,s o m eo f w h i c h
n u r s e r yi n L e i d e n ,H o l l a n d D
a r e s t i l l g r o w n t o d a y . I n c l u d e da r e : A l p h o n s eL a v a l e e( 1 8 7 3 ) o r a n g ew i t h p i n k ;
C h e v a l i edr e R e a l i( 1 8 7 5 ) p a l e y e l l o w ;C o m p t ed e P a p a d o p o l(i1 8 7 3 )s a l m o np i n k ;
W . E .G u m b l e t o n( 1 8 7 2 )y e l l o w .A m b r o s eV e r s c h a f f e ol tf G h e n ta n do t h e r sw e r ea l s o
at work. The Dutch in 1890 producedtwo varietiesof R.japonicumwith red flowers,
n a m e l y J . C . v a n T o l a n d M i c h e l i n eA l b e r t s ,w h i c h w h e n c r o s s e dp r o d u c e dH u g o
Hardiizer,anotherbright red.
l n 1 8 9 2 K o s t e ro f H o l l a n da c q u i l e df r o m F . d e C o n i n c ko f B e l g i u ma b o l l e c t i o no f
hybrids of molle x japonicum. Theseare known as R.kosterionum,someof which are:
A n t h o n y K o s t e r ,y e l l o w w i t h b r o n z eb u d s ;F r a n sv a n d e r B o m , a p r i c o tt o s a l m o n ;
H o r t u l a n u sW i t t e , o r a n g ey e l l o w , a n d H u g o K o s t e r ,p o p p y r e d . I n 1 9 0 1 h e a l s o
dy m a n ya s t h e
p r o d u c e dA d r i a a nK o s t e r ,p u r e d e e p y e l l o w ,w h i c h i s s t i l l r e g a r d e b
Page 10
f i n e s t M o I l i s a z a | e a o f i t s c o I o u r , C h a r l e s V u y l s tto
e k e o group.
f B e l gAlso
i u m introduced
addedEIeganti
probably fr.omR.viscosum the
odorata, a smallwtrlte alatea
a n dQ u e e n
p
i
n
k
,
r a ( 1 9 1 2 )a p r i c o ry e l l o wt i n g e d
g sonffi;; I;;;
b y w e z e l e n b u r&
glow'
E m m a ,d e e Po r a n g ew i t h s a l m o n
In-l8ggKersbergenBros.ofHo||andobta|nedm
a n y s e e d l i n g s f r o m They
Dutchand
R'iaponicum'but also.molj:':11'on'"m'
sources,mostly of the pure species
n a m e d - l 2 0 , i n c l u d i n g t h e s e t w o w e | | k n o w n u u , ia. ltsi o
. ,,t.w
Boa vbeeruy f ifn( e1 h9y1b8r )i d| isg h t s a
o r a n g er e d .A t t h i s t i m e
p i n k a n d M u l t a t u l it r s l g i r i g h t
(1920
Tol' namely Dr'Oesthoek
from R'iaponicumforma J'C' van
were cieveloped
p
i
n
k
'
s
a
l
m
o
n
( v a nN o o r d t )
" J , ' t t O M e v r o u wG ' v a n N o o r d t
O e s t h o e km
) andarin
NowthedescendantsofR.japonicumandthedescendantsofthemo||exjapon
h y b r i d s w e r e i n t e r b r e d ' S o m e o f t h e v e r y f i n e s t a r eG: K
o s t e r , s B r iy| e
| ilal onwt (; 1 9 1 8
w r e n { E n d t z ) ,s v n o n y m o t d b a l lo, r a n g e
a n dS o n )r e d c r i s.hr . ^ ; ; , ; ; r i ; r o p h e r
p
oppy
S
p
e
k
)
(
l
o
+
+
S o n s )o . . p , . a ; S p e k ' so r a n g e
M r s .p e t e rK o s t e r( 1s j l ' K o r r . , . a n d
red;Dr.Jacobi(-lg48Hardijzer)signa|red;Snowdrift(H.White)whitewith
spotting
MollisAzaleasfrom Seed
Thereisa|soagroupofMolIisaza|easthatarenotc|ones,butseedlingswh
fairlytruetothecolourofthemotherplant.TheseseedIingstrainsaregiventh
o f t h e m o t h e r p l a n t , s o m e e x a m p | e s a r e ; B a b e u f f S t r a i rne(dK' A
e nr sobt heerrg reonu)p|oi gf h t s a
v a nT o l ( v a nT o l )
p i n k ; C . B . v a n N e s ( u ^ X t ' ) o r a n g er e d ; J ' C '
of two
h y b r i d sp r o d u c e db y r e p e a t e dc r o s s i n g
h y b r i d sa l s o a r e n o t c l o n e su u t l i n e
o f K o s t e r ' sB r i l l i a n t '( E d i t o r ' sn o t e :
. n e x a m p l eo f t h i s a r e s e e d l i n g s
s e l e c t e cdl o n e s A
ourexperiencehasbeenthattheseseedIingscannotbere|iedontocomefulI
l o s t e r ' sB r i l l i a n tR e d ' )
t h e r i c h c o l o u ro f t h e o r i g i n aK
mid May'
h y b r i d st o b l o o m i n t h e s p r i n ga, b o u t
M o l l i sa z a l e aasr e t h e f i r s t d e c i d u o u s
Theflowershaveacolourrangefromyellow'orange'red'pinktowhite'The
largerbloomsthantheGhentaza|eas,2/,up|o41/zinchesacrossforthenew
anda||aresing|es.Eachtrusshasfrom6to12flowers.Thep|antsf|owerju
foliageisabouttooreak.Thereisnotmuchscent.Mo||isaza|easareuprightt
feet.Theyarenotu,t"'u,.auastheGhentsbuthavedonewe|lformeinToronto
a r e o n t h e i r o w n r o o t s . T h e a d v e r t i s e r s i n t h i s b u l l eto
t i nforce
s h o uinto
l d b ebloom
a b | e t in
o s au p p |
are very easy
of the plants mentioned' Mollis azaleas
the Eastertrade eachyear in Europe'
rnorrunJ, of tt,rm are forced for
greenhouse.
S o m e y e a r s a g o I t r i e d t h i s t h r o u g h s e v e r a l T o r o n ls
toflorists.ldon,tthinkth
no foliage'I still think it a good idea'
wasreadyfot.itowtring 't't'un' *iin
(?arl2ofthisartic|ewillincIudetheoccidenta|ishybridsRusticaFIore.plen
bulletin')
, n dw i l l a p p e a irn a f u t u r e
K n a p h i l l - E x b u rhyy b r i d s a
R H O D O D E N D R OA
NTSV I N E L A N D
R.A. Fleming,K.S. Begg VinelandStation,Ontario
T h e R h o d o d e n d r ofna m i l y o f p l a n t sa n d o t h e r sa s s o c i a t ewdi t h t h e m i n p u b l i ca n d
Institute
privateplantingsarefar from a recentventureof the HorticulturalResearch
o f O n t a r i oa t V i n e l a n d .
When the writer was appointedto staff in 1951, freshout of collegeand still quite
were,and had beengrowingfor a
ignorantof many of the ornamentalplants,azaleas
number of years in the then, small gardensarea. Someone,obviouslyknew their
as the soil in which they were growingwas deep,rich in humus
generalrequirements
and in a well drained location. Each year, until a redesignof the gardenswas
undertaken,thesefew plantsbloomedregularlyeachspring.
camein 1952.Throughthe generosityof
The first attemptat growingRhododendrons
at the Ontario Agricultural
of
Horticulture
Department
Miss Louisa Heringaof the
- a smallcollectionof
Guelph)
of
the
University
in
(now
of
the
colleges
one
College
given
to
the
lnstitute.
was
Rhododendrons
leaved
deciduousand broad
A bed was excavated18 inchesdeep - 6" of well rotted manurewas put in the
areawith a good long
bottom and the balancefilled to 6 or 8" abovethe surrounding
f i b r e d p e a tw h i c h w a s ,a t t h a t t i m e ,q u i t er e a d i l ya v a i l a b lien b u l k .T h i s s e e m st o h a v e
been an ideal setting,a northern exposureplus the peat and manure'as the plants
with exceptionalvigorand grewand floweredyearafteryear.
responded
of
The directorof the Instituteat that time, Dr. E.F. Palmer,realizedthe possibilities
province.
Under
of
the
areas
great
value
for
certain
of
ornamentals
as
Rhododendrons
the terms of a HorticulturalTrust set up by Dr. Palmer,a proiectwas begunto test
speciesand varietiesof rhododendronsfor their adaptability to the climate of
a e t h o do f
S o u t h e r no n t a r i o .T h e w o r k w a sl a u n c h e di n 1 9 5 1 1 9 5 8b y d e v e l o p i n gm
and the first
conditions.This provedquite successful
growing seedunder greenhouse
plantswhich createa beautiful
grown are now largeevergreen
seedlings
R.catawbiense
i
n
e
a
r
l
y
t
h
e
I
n
s
t
i
t
u
t
e
c
r
e
e
k
z
t
June.
d i s p l a ya l o n gt h e
R. Roy Forster
The lnstitutewas fortunatein 1958 to acquireasa technicalassistant,
addeda greatdealto
- a Kew garden'sgraduate
whoseknowledgeof thingsEricaceous
the basic knowledgealreadylearned.Under his guidancethe Rhododendronproiect
expandedrapidly to encompassan intensivelycultivatedareadevotedto dlsplaying
better speciesand varietiesand a second,a woodlot area,for the evaluationof lesser
known species,speciesof unknown hardiness,seedlingsof the Institute breeding
of promisefrom seedlings.
programand selections
At presentboth areasare the Institutecentresof interestduring late April, May and
their varieties
June with somethingnew to seeeach day as the variousspeciesand
comeinto flower.
Under the direction of Mr. Ken Begg,the work is continuing.At the presenttime,
more emphasisis beingplacedon culturalconditions,the selectionof hardy varieties,
and methodsof proPagation.
Page12
T h e f o l l o w i n gh y b r i d sh a v es h o w ng r e a tp r o m i s ei n t h e l n s t i t u t et r i a l s '
h y b r i d i z i n gb y R . R . F o r s r e r )
vEESpRITE (lntroducedin 1966 by H.R.l.O.
m\
(R.i mpedi tum x R.racemosu
gardenor a protectedpocketin
A dwarf, small leavedRhododendronidealfor a rock
thefoundationplanting.Theplantgrowstoaheightofaboutl0"'iscompacti
only in the
of t"o-r.colouredflowersin earlyMay. lt is winter-hardy
habit, with masses
areas'
southern
other
in
protection
milder areasof southernontario, requiringwinter
crossedby R'R' Forster'(seecover)
61'11(R.smirnowiix LadyBessborough)
rhododendrongroups'Ten
This is one of the first hardy yellowsof the largeleaved
h
a
sw o n n u m e r o u sa w a r d si n
6
1
1
1
1
s e l e c t i o nhsa v e b e e nm a d ef r o m t h i s c r o s sa n d
U.S.Rhododendronflowershows.Mostofthese|ectionshavelargeg|ossypo
, r i n go u t
will, hopefullyb
l e a v e sa n d t h e a v e r a ghee i g h ti s f i v e f e e t . F u r t h e rb r e e d i n g
this
strain'
of
and intensifythe colour
maximumhardiness,
61081 (Americanx Dr' Ross)crossedby R'R' Forster
height of the plant after ten
An outstanding,largeleaved,red Rhododendron'The
vearsisfourfeetandisnotas|eggyasthevarietyAmericaingrowthhabit.Thec
is very clearwith no blotch.Hardyin the NiagaraPeninsula'
6225 (Americax R.yakusimanum)crossedby R'R' Forster
has
s .o r t h r e ec o n s e c u t i vyee a r st h i s s e r i e s
o n e o f t h e h a r d i e spt i n k R h o d o d e n d r o nF
wonthehardiestpinkhybridawardattheGreatLakesChapteroftheA.R.S'Ab
for introductionsas hardy pinks for
fifteen selectionsare presentlybeingpropagated
thecolderpartsofontario.PlantheightfromUz'to3,,compactgrowthwithruf
p i n kf l o w e r s .
ExburYAzaleas
azaleaseries'Two reds show
Ten selectionsare being tested from this deciduous
Largetrussyellows'that
color.
as well as outstanding
promisefor mildew resistance
-25o
great
deal of promise'one
a
show
are relativelyeasyto propagateand hardy to
of superiorsize
heads
flower
pink and numerousoiungr-ird shadeshavewell formed
and color and are mildewresistant'
'i
Page 3
P R O P A G A T I NHGA R D YA Z A L E A S
D . L . C r a i ga n d R . ..f N e w b e r y K e n t v i l l eN
, o v aS c o t i a
F o r t h e p a s t5 y e a r s t, h e K e n t v i l l eR e s e a r cSht a t i o nh a si n v i t e dt h e p u b l i ct o c o m ea n d
v i e wt h e i rp l a n t i n gos f a z a l e aasn d r h o d o d e n d r o ndsu r i n gt h e m o n t h so f M a y a n dJ u n e .
E a c hy e a r t h o u s a n dos f p e o p l er e s p o n dt o t h i s i n v i t a t i o nW
. e h a v en o t e dt h a t d u r i n g
t h e v i e w i n go f t h e m a n y p l a n t i n g st h a t t h e g r o u po f p l a n t st h a t r e c e i v etsh e g r e a t e s t
a t t e n t i o ni s t h e K n a p H i l l a z a l e a sT.h e c u l t i v a r G
s i b r a l t a rB
, r a z i lS
, a t a na n do t h e r sa r e
v i e w e da n d p h o t o g r a p h efdr o m e v e r yc o n c e i v a b laen g l eT
. h e m o s t c o m m o ne x c l a m a tion is, "How unfortunateit is that we cannotsecurethis kind of azaleatogrow in our
g a r d e n " .F e w r e a l i z eh o w v e r y s i m p l ei t i s t o p r o p a g a tteh e s eh a r d y ,b e a u t i f ual z a l e a s .
At the Research
Stationpropagationis a very simpleprocedure.
(FigureD)
Propagation
in lntermittentMist in a Glasshouse
t o p r o d u c ef l o w e r i n gp l a n t si n
B y f o l l o w i n gt h e p r o c e d u r el i s t e db e l o w ,i t i s p o s s i b l e
2 - 3y e a r s .
.l
Cut 3-4 inch softwoodcuttingsbetweenJune20 and July 0. Useonly new growth
t h a t i s l i m b e r .G r o w t h t h a t h a sb e c o m eh a r d w i l l n o t r o o t w e l l . R e m o v eb a s a l e a v e s
a n d r e d u c et i p l e a v e st o 3 t o c u t d o w n o n w a t e rl o s sf r o m t h e c u t t i n g .l f t i p l e a v eas r e
u n d u l y l o n g ,r e d u c et h e i r l e n g t hb y o n e - t h i r dP
. l a c ec u t t i n g si n a r o o t i n gm e d i u mo f
e q u a l p a r t s o f p e r l i t e a n d p e a t o r c l e a ns a n da n d p e a t .S p a c et h e c u t t i n g si n t h e
p r o p a g a t i o tnr a y s2 i n c h e sa p a r ti n t h e r o w a n d 2 i n c h e sb e t w e e nr o w s .I n s e r tc u t t i n g s
1 . 5 i n c h e si n t o t h e r o o t i n g m e d i u m a n d l i g h t l y c o m p a c tt h e m e d i u ma r o u n dt h e
c u t t i n g s .M a i n t a i nm o i s t u r ew i t h i n t e r m i t t e n m
t i s t o p e r a t e db y a t i m e c l o c k .S u p p l y
b o t t o m h e a t ( 7 0 o F )w i t h a h e a t i n gc a b l eC
. u t t i n g sr o o t i n 6 - 8 w e e k sP
. o tu p i n a i - 2 - 1
( s a n d - p e amt o s s - s o i m
l ) i x a n d g r o w i n a g l a s s h o u soer o u t d o o rc o l df r a m e .D u r i n gt h e
e 0 o F )o r i n a c o o l s t o r a g reo o m ( 3 5 - 4 0 o F ) .
w i n t e r ,p l a c ep l a n t si n a c o o l g l a s s h o u s( 5
C h i l l i n gR e q u i r e m e n t s
A z a l e a tsh a t a r ep r o p a g a t eidn a m i s t l i n ed u r i n gt h e s u m m e a
r n dt h e ng r o w ni n p o t si n
a c o o l g l a s s h o u sdeo, n o t r e q u i r e e x p o s u r et o c o l d t e m p e r a t u r e( 4
s 0 o Fo r l o w e r )f o r
normag
l r o w t h( F i g u r eB ) .
Propagating
in the Glasshouse
Duringthe WinterMonths
P r o p a g a t i ocna n c o n t i n u et h r o u g h o u t h e w i n t e r i n a g l a s s h o u sBe r. i n gs t o c kp l a n t s
into the glasshouse
early in Septemberwhen they arestill in an activestateof growth.
T h e y m u s t n o t b e l e f t t o o l a t e b e c a u s teh e h a r d e n i n o
g f f p r o c e s s ewsi l l h a v eb e g u n .
M a i n t a i nt h e g l a s s h o u snei g h t t e m p e r a t u raet 6 0 o F a n d t h e d a y a t 7 0 o .U s ea 1 6 - h o u r
p h o t o p e r i o dc o n t r o l l e db y a t i m e c l o c k .T h e 6 0 - 1 0 0w a t t r e f l e c t o try p e i n c a n d e s c e n t
. o f t w o o dc u t t i n g s c a n
l i g h t sa r e s p a c e d2 . 5 f e e t a p a r ta n d 2 . 5 f e e t a b o v et h e p l a n t s S
b e h a r v e s t eedv e r y6 w e e k s( F i g u r eA ) . T h e r o o t e dc u t t i n g si f g r o w nu n d e rt h e s a m e
, i l l f u r n i s ha d d i t i o n acl u t t i n g sT. h i s p r o p a g a t i otne c h n i q u e
c o n d i t i o n sa s n o t e da b o v ew
m a k e si t p o s s i b l et o p r o d u c ea g r e a t n u m b e ro f p l a n t sb y t h e t i m e i t i s s a f et o
transplantthem to outdoor nurseryrows.
P a g e1 4
apply only to Nova scotia' The
givenin this articlefor taking the cuttings
one weeK
Editor,s Note: The dates
F
o
r
Q
uebec climate begin
c
u
r
r
e
n
t
.
s
e
a
are to the cold
Atlantic coast has " ,",. ,pri"g
t w o w e e k se a r l i e r '
""tfi.t. una for SouthernOntario
A
ii
l
'.
. r'",
ts
D
E
an outdoor solarframe and
t a k e n o n Ju l y 1 ' 1 9 7 0 ; r o o t e d i n
A n a z a l e ap l a n t f r o m a c u t t i n g
growing season'
g r o w n i n a p o t d u r i n g t h e 19 7 1
under mist and grown
a c u t t i n g t a k e n J _ u l y1 , 1 9 7 1 ; r o o t e d
A 6 _ m o n t h - o l da z a l e ap l a n t f r o m
and 65oF night temperature'
d
a
y
7
0
d
F
a
i n t h e g l a s s h o u s .i n u f A ' r t o u ' l ' h t t t p " t i c l ? '
glassn o c h i l l i n g ; r e m a i n e di n c o o l
April 1970' L:lt.
cool glasst
o
A z a l e a sp h o t o g r a p h e di n g l a s s h o u s e
r
e
t
u
r
n
e
d
3
0
)
"
t
h
e
n
-;;i;;;
rieets (oec' 29 to lan'
h o u s eu n t i l A p r i l . c e n t e r
cool glasshouse'
i.u- 16) then returned to
h o u s e .R i g h t c h i ' e d , , * ! i o , t o " r l i - i .
p r o p a g a t i o nb e d '
G l a s s h o u s ei n t e r m i r t e n r m i s t
o f a z a l e a so u t d o o r s '
Solarframe for propagation
mist line
under glass'house
Percent rooting of Knap Hill azaleas
and in outdoor solarframe'
Cultivar
Brazil
Gibraltar
G o l d e nD r e a m
Knap Hill White
Glasshousemist line
% Rooted
No. cuttings
14
28
26
92
83
78
100
Outdoor Solar Frame
% Rooted
No. Cuttings
6
6
7
4
6
6
50
8
5
75
Page 15
PropagatingAzaleasin Outdoor Solar Frames
outdoors.
Usea solarpropagationframe as illustratedin FigureE to propagateazaleas
materials
The
on
the
cuttings.
Facethe solarframe north to eliminatedirect sunlight
for
above
outlined
to
those
identical
and methodsfor propagatingin a solarframeare
not
required.
is
the
cable
that
heating
propagatingin a glasshouse.
The exceptionis
Moistureis maintainedby wateringregularlyand keepingthe sash(FigureE) closed.
From the time the cuttingsare first inserteduntil they are rootedthe framesare kept
tightly closedexcept for wateringand pest control. Leavethe sashopen after the
cuttingshaveformed roots and new top growth becomesapparent.Leavethe rooted
cuttingsin the solarframe until spring.Slattingthe solarframebedswill easethe snow
load on the cuttings.Poisonbait will help eliminatemicethat may injurethe cuttings.
Whengrowth appearsin the spring,pot up the cuttingsor transplantthem to a nursery
r o w ( F i g u r eC ) .
mist bed
of cuttingsthat root is generallyhigherfrom the glasshouse
The percentage
providesbetter control of
than from the outdoor solarframe becausethe glasshouse
variationbetweencultivars
light, temperatureand moisture.There is alsoconsiderable
in the easeof rootingbut 50-100%rootingcanbe expected(SeeTablefollowing).
Station,45 Knap Hill azaleacultivarsareon test.They range
At the KentvilleResearch
in color from white, yellow, orange,pink, red to dark red. No other gardenshrubcan
match the beautyof their flowers.Take a little carewith a few cuttingsand within 2
floweringin your garden.
or 3 yearsyou too will haveazaleas
T H E Q U E S TF O RA T R U L Y H A R D YY E L L O WR H O D O D E N D R O N
LeslieHancock
Mississauga,Ontario
I would like to discussbriefly in thesepagesthe tremendousinterestthat has been
developingduring the last twenty-fiveyearsin the abovesubject.For our front cover
i l l u s t r a t i o nw e h a v ec h o s e nt h e n e w y e l l o wf l o w e r e dh y b r i d N o . 6 1 1 1 1 , p r o d u c e da t
the VinelandHorticulturalResearchlnstituteby Roy Forsterduringthe periodof his
rhododendron researchwork there. Also within the bulletin is a photo of
Rhododendronchrysanthum which flowered at Woodland last springon a small plant
givento us by CaptainR.M. Steele.
The attempt to createhardy yellow rhododendronhybridsfor generalgardenuse is
"Rhododendronsen Azaleas",publishedin 1954, Herman
not new. In his book
"Already
Groofendorstof Boskoop,Holland statesas follows: (liberallytranslated)
sincethe firm of M. Koster& Sonsof Boskoopattemptedto
half a century has passed
broadenthe color rangeof rhododendronhybrids by bringingin the yellow colour.
were known but these little resembledevergreen
Yellow coloured azaleodendrons
r h o d o d e n d r o n s . R a t h e r t h e y w e r e m o r e l i k e a z a | e a s . western
T h e c h ochina
i c e ohad
f p anot
rentmate
of
yellow bloomingspecies
that time wasfairly restrictedasthe
l e f o l l o w i n gs p e c i e s :
h a d a t t h e i rd i s p o s at h
y e t b e e nd i s c o v e r eudn o i m p o r t . a .B r e e d e r s
form lurcum' b'
blooming'
the light yellow
a. Rhod.caucasicumlCaucasus)in
- 3 cm) blooms
(2/z
small
with
unJ.N' Japan)
$inuia,..trluna'n"iu
Rhocl.chrysantnum
t
o p r o p a g a t ec '
d
i
f
f
i
c
u
l
t
b
u
t
v e r y w i n t e rh a r d y
o f l i g h t y e l l o wc o l o u r 'T h i s s p e c i eiss
Sir
Joseph Hooker
Sikkim-Himalaya)
Nepal
Rhod.campytocvrpumi;tt;"
-and .
o n eo f t h e m o s t
i
s
s
h
r
u
b
g
r
o
w
i
n
g
i n 1 8 5 1 'T h i s l o w
b r o u g h tt h i s s p e c i eisn t o E n''lg t a n A
Later in the
cm'"
4
about
of 6-8 bloomseach
beautifulyellow.The truss compo"d
textcomesthismostrevea|ingSentence..lnlg04Kostercrossedcommong
without result!"
hvbrids with Rhod'chrysanthum
l t i s s u r p r i s i n g h o w o n e m a n , s f a i l u r e c a n s o i n f | u e n c e l awere
t e r dlater
e v e produced'
Iopments.Th
fairly goodyellow hybrids
chaptergoeson to describehow many
hardyenoughforatleasttheEuropeangardens,nowhereisthere.mentionofany
a t t e m p t t o u s e R . c h r y s a n t h u m ' N o t o n | y i s t h i s s p e c i peasloeyneel loofwt h
c oelho a
u rr 'dl t i e s t k
a c l e a rt h o u g hr a t h e r
e v e r g r e ernh o d o d e n d r o n ist , a l s o c a r r i e s
hardy
good
havebeenso neglectedin the questfor
seemsstrangethat it and its allies" T h e
bv J'B'
S p e c i e so i R h o d o d t n d r o n "e d i t e d
y e l l o w h y b r i d s .r n u ' t ' J y o f
StevensonfortheRhododendronSocietyofBritain,onefindsinthehardynor
Sub-seriesCaucasicumatleastfourspecieswithpa|eye||owornearyel|owf
oneofwhichisR.chrysanthum'A|sointhesameworkonefindsIistedintheten
s o u t h e r n T h o m s o n i i s e r i e s o r i t s S u b . s e r i e s a | | t h e b eseem
s t y elogical
l l o w s that
p e c ithese
es,three
breedingwork. lt would
have alreadyb..n ,rJ in extensive
richIycolour.d,o,tt..,nspeciesfromtheWestChina.Hima|yanregionsho
mateddirect|ywiththehardyfarnorthernpa|eye|lowornearye|lowspeciesw
purity'
in other seriesof doubtful colour
recourseto species
T h i s h a s b e e n d o n e b y s o m e b r e e d e r s t o a s l i g h t e x t e nbt eb,u, 't' a
n popt ci lryaerl a
r it ee d
di nf a r e n
u o t h l r o u p s a p p e a tr o
T h o u g hw i d e l y , t o u ' u i " i - r t o g r a p h i c a l l y
regardto.hro'o,om.ari'nltv.Asevidenceofthisisa
r e m a r k b y F r i eB
d ur il cl eht W
in ' D u
, , T h eg r . . i i n g o f H a r d y R h o d o d e n d r o n s( A
" . R . S .Q u a r t e r l y
o f G e r m a n yi n
with
:'spttit' of the Thomsonii Seriesor at least varieties
July 191'21.H. ,uy,
thomsoniiinheritanceu,e'pu'tn.r,ofthefirstrankwithbrachycarpum,'.Sonow
haveit;brachycarpumisamemberoftheSub-seriesCaucasicum,andwe
a u t h o r i t y o f a | e a d i n g r h o d o d e n d r o n b r e e d e r t h aphoto
t t h e ypublished
arecomp
a t i b | e .of
Alsoi
courtesy
bulletin is a_goodcolour
July 1g12A.R.S. QJarterly
(R.brachycarpumvar,tigerstedtiix wordii\.
Dietrich Hobbie, of a ye||ow hybrid
that
in the Thomsoniiseries.lt would seem
R.wqrdiiis one of the fin;st yellow species
w e a r e o n t n e v e r g e o f a n i m p o r t a n t b r e a k - t h r o u g hproved
. T h e to
a bbe
o vone
e sof
u bthe
-spe
Arboretum'Finland'has
brachycarpumu, tt'itd in the Musila
hardiestknownrhododendrons.Doubt|essourGermanrhododendronfriends
m o r et o t e l l u s i n t h e n e a rf u t u r e '
Page17
R h o d o d e n d r o n c h r y s a n t h u m i n b l o o m a t W o o d l a n d S p r i n g ' 1 9 7 2 . T h i s n o r t h e r n s p e c i e sh a s t o u g h
rugged cold resistant foliage and is only a few inches high in its most prostrate forms. lt has
afready been satisfactorily crossed with R.compylocarpum in Europe.
D I S E A S EOSF S E E D L I N G
RHODODENDRONS
W.f. Brenderi Bnndis Carlisle,Ontario
Rhododendronseedlings,
like the seedlings
of many other plants,arevery susceptible
to the "damping-off" disease.ln order to be accurate,we should state that
damping-offis not a singlediseasecausedby one fungus,but a complexof diseases
giving similar symptomson the plants,but causedby severalspeciesof the genus
Rhizoctonio, Pythium, Phytophthora and sometimesFusarium. All these fungi are
l i v i n g i n t h e s o i l a n d p r a c t i c a l l ya l l s o i l sw h i c h s u p p o r ta n y k i n d o f p l a n t l i f e a r e
infected.In practice,we use the word "damping-off" as if it is one disease.lt is a
common problem on germinatingseedand seedlingplantsthroughoutthe temperate
climatezone,particularlyundergreenhouse
and similarconfinedconditions,wherethe
moisturelevel and the temperatureare high, thus creatingfavourableconditionsfor
the diseasedevelopment.Many plantscan be grown from seedin outdoor seedbeds
without severeloss from damping-off,but unfortunately,outdoor seedingis not
possiblewith rhododendrons.
The symptomsof the damping-offdisease
are poor germinationdue to the killing of
the germinatingseed,or browningand shrinkingof the stemof youngemergedplants,
which then fall over and die. Once the infectionhas taken place,there is no way to
saveinfectedplants,but it may be possibleto protect the surroundinghealthyplants
by wateringevery week with either benomyl 50% wettablepowderat the rate of 1
level teaspoonful, or captan 50% wettable powder at 6 teaspoonfulsper 1 gallon of
water. Benomyl is likely to be more effectivethan captan.Keepingthe temperature
and air humidity low is of some.help, but dry air is not favourablefor the young
rhododendrons.
P a g e 18
N o w o n d e rt h a t a l l g r o w e r sa i m a t p r e v e n t i o ni n s t e a do f c u r e .F o r t u n a t e l yt ,h i s i s n o t
d i f f i c u l t .N a t u r a ls o i l sa r e n o t a g o o d m e d i u mf o r s e e d l i nrgh o d o d e n d r o ni ns a n y c a s e .
m o s si s f a r s u p e r i ofro r t h e s e e dg e r m i n a t i o na,sw e l l a ss e e d l i n g
M i l l e dd r i e ds p h a g n u m
g r o w t h a n d i t i s f r e e f r o m t h e v a r i o u sf u n g i w h i c h c a u s ed a m p i n g - o f fA. m i x t u r eo f
peatmossand sand is less satisfactory,becausepeatmossfrom some sourcesmay
contain the Rhizoctoniafungusand peatmossis very difficult to sterilize.As all soils
are infectedwith thesefungi, we shouldsuspectany usedseedflats,pots and tools as
. e e df l a t s c a n b e p a i n t e dw i t h P e n t o xw h i c h s h o u l ds o a k
b e i n gs o u r c e so f i n f e c t i o n S
i n t o c r a c k sa n d i o i n t s ,o r n e w f l a t ss h o u l db e u s e d .U s e dp l a s t i ct r a y sa n d t o o l sc a nb e
disinfectedwith a strongbleachsolution.Potsand tools can be sterilizedby heating
them in a kitchenoven at 180oF. for one hour. lt is good practiceto treat the seed
o r i n a j a r w i t h a p i n c ho f c a p t a n
b e f o r es o w i n gb y s h a k i n gt h e s e e di n t h e e n v e l o p e
fungicide.
t o r e d i f f i c u l tw h e n t r a n s p l a n t i ntgh e
P r e v e n t i o on f d a m p i n g - o fbf e c o m e s o m e w h am
y o u n g p l a n t si n t o a m i x t u r eo f t o p s o i lo r l e a f - m o u l dp, e a t m o sas n d s a n d 'W i t h g r e a t
Ieafmouldand compostcan be sterilizedin the ovenwhen spread
care,wet peatmoss,
s
h
e
e t si;f t h e t e m p e r a t u reex c e e d s 8. l0 o F . ,i t w i l l b u r n .T o p s o i la n d
o
n
m
e
t
a
l
thinly
Chemrcalsterilizationis not
higher oven temperatures.
somewhat
can
stand
sand
a rl o w e r .S m a l l b a g so f
p r a c t i c a ol n t h e s m a l ls c a l er e q u i r e db y t h e n o n - c o m m e r c i g
i
s
a p p l i e de a c h w e e k ,
w
a
t
e
r
i
n
p
u
r
c
h
s
e
d
.
b
e
n
o
m
y
l
l
f
b
e
c
a
n
t
o
p
s
o
i
l
sterilized
but
be necessary,
may
not
seedlings
for
transplanted
mixture
of
the
soil
sterilization
available.
is
not
treatment
of
this
effectiveness
on
the
information
sufficient
L a t e rw h e ny o u n g p l a n t sa r e p l a n t e di n a n o u t d o o rb e d ,t h e d a n g e or f d a m p i n g - o fi fs
of the
p r a c t i c a l l yo v e r ,d e s p i t et h e p r e s e n c oe f t h e f u n g i i n t h a t s o i l .T h e h a r d e n i n g
s t e m sm a k e st h e m l e s ss u s c e p t i b laen d t h e a i r c i r c u l a t i o nc a u s etsh e m t o d r y m u c h
a cold frame or a
faster after watering,than in the confinementof a greenhouse,
p l a s t i ct e n t i n t h e b a s e m e n t .
if the seedis sown
Botrytis blight is anotherdiseasewhich may infectyoungseedlings
grey
pot.
mould is then
or
A
flat
in
the
too
crowded
are
too thickly and the seedlings
fast. Drastic
very
spreads
usually
disease
This
and
stems.
the
leaves
noticeableon
a, sd e s c r i b e d
b
e
n
o
m
y
l
w
i
t
h
w
a
t
e
r
i
n
g
p
l
a
n
t
s
W
e
e
k
l
y
n
e
c
e
s
s
a
r
y
.
i
s
r e m o v aol f a l l i n f e c t e d
must be
plain
water
with
foliage
of
the
wetting
but
disease,
of
this
control
earlier,gives
been
noticed.
disease
has
once
the
avoided
" B e n o m v l " i s t h e c o m m o nn a m ef o r t h e i n g r e d i e not f a n e w f u n g i c i d ew h i c h h a sa
systemicaction. This means that it is absorbedinto the plant sap and is then
t r a n s l o c a t eidn s i d et h e p l a n t t i s s u el.t i s a v a i l a b l teo c o m m e r c i agl r o w e r si n 3 - p o u n d
" B e n l a t e "5 0 % w e t t a b l ep o w d e r ,a n d t o h o m eg a r d e n e risn % - p o u n d
b a g sa s D u P o n t
" P o m o g r e e nR
" o s ea n d F l o w e rF u n g i c i d el .t m a y b e o f i n t e r e s t
c o n t a i n e rass N i a g a r a
that this fungicidealso givesexcellentcontrol of black spot on rosesand powdery
m i l d e wo n r o s e sa n do t h e ro r n a m e n t apl l a n t s .
Page 19
RHODODENDROF
NR
S O MS E E D
GROWING
U N D E RA R T I F I C I A LL I G H T
Ray E. Halward
R.B.G.,Hamilton,Ontario
from seed?
Haveyou tried to grow Rhododendrons
but there arethosewho
havetried and succeeded
I am suremanv Rhodo enthusiasts
s n t h e f a c i l i t i e sy o u h a v ef o r g r o w i n g l.f
h a v ee x p e r i e n c eddi f f i c u l t i e sA. t o t d e p e n d o
e s, u a l l yl i g h t a n dh u m i d i t ya r en o p r o b l e ma n dr a i s i n gR h o d o s
y o u h a v ea g r e e n h o u s u
y f t h e h o m e o w n e rw
s ho
f r o m s e e di s s t a n d a r dp r o c e d u r eI. a m t h i n k i n gp a r t i c u l a r l o
have a Rhodo plantingand are interestedin raisingmore plantsfrom seed,whether
they be seedsfrom a seedexchangeor seedcollectedby the individual,or purchased
t h t s ,I
f r o m a s o u r c eo f q u a l i t ys e e d l.f y o u h a v en o t t r i e dg r o w i n gu n d e r f l u o r e s c e lni g
am sureyou will be amazedat the resultsyou will obtain.I havebeengrowingplants
under artificial light for about 10 yearsand have had the opportunity to evaluate
methodsand resultswith this methodof propagation.
CollectingSeed
, h e nt h e y t u r n
w h e nt h e c a p s u l easr em a t u r e w
R h o d o d e n d r osne e ds h o u l db e c o l l e c t e d
from greento brown, preferablybeforethe capsulestartsto split. Whentaken into a
warm room, many types will open within a few days.Othersmay haveto be opened
seedfrom chaff with finer
forcibly by rubbingon a coursescreenand then separating
and
an earlystartwill mean
as
soon
as
collected
ready
to
sow
Many
seeds
are
screens.
you
need
to
store seeduntil a later
lf
plants
out
the
following
Spring.
to
set
larger
your
they
will keepviablefor a
plastic
and
refrigerator
bag,
sealed,
in
date, store in a
p
e
r
i
o
d
o
f
t
i
m
e
.
m u c hl o n g e r
Seeding
S e e d i n gm i x t u r e sa r e m a n y a n d v a r i a b l e l. h a v e u s e da n a c i d s o i l m i x w i t h s i f t e d
sphagnumon top and also a peat-perlitemix,/z and/z with sifted sphagnumon top
and I do prefer the latter.The moreopen textureallowingmoreaerationgrowsbetter
I useplasticboxesfor seedingasthey arecleanand are lesslikely to harbour
seedlings.
disease.
The seedingmix shouldbe well firmed in the seedbox within lzinch of the
if
top and topped off with a thin layer of sifted sphagnumpeat or milled sphagnum,
so less
you can get it. Sphagnummosshas a naturalinhibitor againstfungusdiseases
p r o b l e m sw i l l b e e n c o u n t e r e dI .t a k e n o c h a n c eas n d u s ec a p t a n5 0 W ,a w e l l k n o w n
fungicide,in the dry form, and before sowing mix somewith the seed.The seedis
easierto seewith a white coveringand more evenlydistributed.The seedis sownon
top of the mixture and light coveringof captanspreadon top and wateredin with a
fine spray.
The boxesare labelledwith date, nameof seedand treatmentandsealedin largeclear
p l a s t i cb a g sT
. h e y a r e t h e n p l a c e du n d e rl i g h t so n a 1 6 h o u r l i g h td a y .D i s t a n c fer o m
the lights to start is about 8 inchesfrom the seed box and after germinationis
complete about 12-15 inches.Germinationwill quite often take place in about 10
days.About a weekor so latergraduallyremovethe plasticbag.
Page 20
The fertilizerI have
germination.
Feedingwith a liquid fertilizercan begina weekafter
fertilizerand used
acid
an
is
which
used is ortho evergreenand Azaleaplant food
f
o
r h e a l t h yR h o d o
n
e
c
e
s
s
a
r
y
a c c o r d i n gt o d i r e c t i o n sc a n p r o v i d et h e n o u r i s h m e n t
Ii ngs.
seed
" D u r o - t e s tV i t a - l i t e s "w h i c h I h a v eu s e d
T h e l i g h t s u s e df o r g r o w i n g a r e 4 0 w a t t
to natural
extensivelyfor startingand growingand are saidto be about the nearest
l i g h ti n t h e a r t i f i c i alli g h tf i e l d .
y e a r ,w h e na l l d a n g e r
T r a n s p l a n t i ntgo o u t d o o r sf r o m u n d e rl i g h t si n t h e s p r i n go f t h e
o f f p e r i o df o r a b o u t a w e e ku n d e ra s h a d e dc o l d
o f f r o s t i s p a s t ,r e q u i r e sa h a r d e n i n g
frame.
T H E S T A R TO F T H E ( S L I D E )L I B R A R Y
R. Behring Laval,Quebec
h a sb e e nm a d e 'M r '
Finallv I am able to report, that the f i r s t c o n t r i b u t i o no f s l i d e s
to have number 1 in the Name catalog'More
Hancockwas the donor, he deserves
"lnstruction&
s Rules".
about the catalogsand their usesin the a r t i c l et i t l e d :
all important first
My slideshad been ready for some time, but I waited for that
to view' learnand
able
be
donation.ln other words I am #2. We are on our way to
donationwill
a
small
enjoy the other members'momentos.Keep them coming,even
helo.
allour members
w h i l e w a i t i n gf o r s l i d e sI, h a d t h e i d e af o r a p u b l i c a t i o nlsi b r a r y 'N o t
societies'What
Rhododendron
other
the
all
to
to
subscribe
have the financialmeans
from somemembers.
betterway then,than to receivedonationsof publications
t h e A . R . S . 'T h e
M r . B r e n d e r) B r a n d i si s s o k i n d a s t o s e n ds o m eb u l l e t i n sf r o m
b
e
c
o m em e m b e r so f
h
a
v
e
S
o
c
i
e
t
y
o
u
r
n o c i e t y( D . R . G . )a n d
G e r m a nR h o d o d e n d r o S
copiesof their
back
of
number
a
large
one another and we have alreadyreceived
pub|ication.Weshou|dgainfromtheirYearbook,hopefu||ytheGermanmem
p r o f i t f r o m o u r a r t i c l e sa sw e l l .
Are there anv memberswho would like to sponsorpublicationsof other societies?
b o o k l e ts i z ew o u l db e a p p r e c i a t e d .
( f r o mG r e a tB r i t a i ne t c . ) .A n y p u b l i c a t i o n
do
The formation of a book library was consideredbut left for anothertime. How
this subiect?
membersfeel regarding
l n t h e s u m m e ra d r a f tw a ss e n tt o t h e D i r e c t o r so u t l i n i n gt h e o p e r a t i o no f t h e s l i d e
l i b r a r y .T o m y s u r p r i s ea, f r e eh a n dw a sg i v e ni n s e t t i n gi t u p ' l f m y i d e a sa n d r u l e sd o
y i l l p o i n ti t
. o p e f u l l ys o m e b o d w
n o t t u r n o u t t o b e a p p i o p r i a t eo, n l y I a m t o b l a m e H
out so that it can be corrected'
Now on to theseinstructionsand rules.
P a g e2 1
I
II
I
I n o r d e r t o p r e v e n tl o s so f i n f o r m a t i o nt h a t w o u l dh a v et o b e s u p p l i e ds e p a r a t e lwyi t h
eachslide,a systemwas devisedto haveall major datatyped onto the slidemount, in
t h e s a m e o r d e r a s i n f o r m a t i o n r e q u e s t e dw h e n d o n a t i o n sa r e m a d e . A d d i t i o n
i n f o r m a t i o nm i g h tb e t y p e do n t h e r e v e r ssei d e .A s a m p l es l i d ei s s h o w nb e l o w .
Derail
I
Donor fr
( N a m eC a t a l o g )
56
G e n e r a lS l i d e
-TRUSS- 287
Catalog ft
CATAW. GRANDIFLO.
Location of plant H a r d i n e s sAge
shaded/
Hl ,
Fence
June
l-0Y, 8 x 10'
/
36
-
Title of slide
S e a s o no f b l o o m
G r o w i n gl o c a t i o n
H e i g h t& b r e a d t h
Four differentcatalogswill be madeand looseleafssentto members.
1 . G e n e r a lS l i d eC a t a l o g- c o n s t a n t l yg r o w i n g .E a c hs h e e th a s 5 0 s l i d en u m b e r s
f o l l o w e db y t i t l e s .A n u m b e rw i l l o n l y b e r e m o v e di f a s l i d ei s p e r m a n e n t llyo s t .
, a k i n gu p b o x .
O r d e rf r o m t h e s es h e e t b
s y i n d i v i d u anl u m b e r m
E X A M P L E :2 8 7 ( F o l l o w e db y d o n o r ,t i t l e e t c . )
A list of
2. Name Catalog- constantlygrowing,periodiccorrectionof addresses.
parksetc. and their addresses.
donors,breeders,
E X A M P L E :5 6 ( F o l l o w e db y n a m ea n d m a i l i n ga d d r e s s . )
3t u m b e ra n d t i t l e i s f o l l o w e db y
S u b i e c tC a t a l o g- p e r i o d i cc h a n g e sT.h e s u b i e c n
l l i d eC a t a l o go f t h e m o s t a p p r o p r i a tsel i d e sr e g a r d i n g
n u m b e r sf r o m t h e G e n e r aS
e r d e rb y S # o n l y .
t h a t s u b j e c tP. e r i o d i cs l i d ec h a n g etso l i s t t h e b e s ta v a i l a b lO
E X A M P L ES: 5 - A l p i n eR h . 2 1 , 1 1 2 , 2 2 7 , 2 2 8 e t c .
A
. n u m b e rw i l l o n l y b e r e m o v e do n
P u b l i c a t i o nC
s a t a l o g- c o n s t a n t l yg r o w i n g A
l o s so f p u b l i c a t i o nO. r d e rb y P # o n l y .
. 9 7 1Y e a r b o o k
EXAMPLEP
: 1 7D . R . G 1
W h e n m a k i n g s l i d e c o n t r i b u t i o n sw
, h i c h a r e g r e a t l ya p p r e c i a t e dp,l e a s es e n d t h e
f o l l o w i n gi n f o r m a t i o no n a s p a r es h e e t o b e p r o c e s s ebdy t h e l i b r a r y :
1 . N a m ea n d a d d r e s os f d o n o r .2 . N a m eo f p l a n t .3 . L o c a t i o no f p l a n t( o p e n ,s h a d e d ,
park, garden,orientationrelatedto buildings,fences,shrubbery,etc.) 4. Seasonof
D>oe ))
b|oom.5.Hardinessrating.6.Ageofp|antwhenphotographed.T.Heightandbr
g . C o l o u ro f f l o w e ro r t r u s s .D o n o t h e s i t a t et o d o n a t ei f o n l y l i m i t e di n f o r m a t i o ni s
known.
for ordersand donations:
Mailingaddress
( S l i d e )L i b r a r y
-144
Giroux
S t . D o r o t h e eL, a v a lP / Q .
T e l e p h o n (e5 1 4 )6 8 9 - 0 3 5 0
LIBRARYRULES
General
1.
2.
3.
4.
5.
6.
1.
8.
Only membersof the Societymay borrowfrom the library.
for the loan restswith the member.
Responsibility
one month in advance.
Materialshallbe requested
The loanshallbe of two weeksduration.
Firstcome,first served.Priorityfor meetingrequests.
on to other members,as longas libraryis first notified,to
Materialmay be passed
get clearance.
may be negotiatedwith the librarian.
Specialarrangements
Loansare free of charge,althoughPostagestampof currentvalue (81 per slide
to offset mailingexpenses'
box,12( for publication)is requested
Slides
1.
2.
3.
4.
R e q u e spt e r b o x ( 3 6 s l i d e so) n l y , l i m i t 3 b o x e s( t O a s t i O e s )
Only prolectorswith slidecoolingsystemareacceptable.
A fee of 301for everyburnt, torn or damagedslidewill be charged'
(to preventtotal loss)
All boxesareto be mailedbackseparately.
Publications
L i m i t 2 p u b l i c a t i o npse rl o a n .
R E G I O N AN
L OTES
HALIFAX
CaptainR.M. Steele
n o c i e t y ,D o c t o r sF r a s e r
F o u r o f t h e N o v a S c o t i a m e m b e r so f t h e R h o d o d e n d r o S
w
i
t
h
c
o
m
m
a
n
d
e r T o n yL a w ( T h eN o t e d
N i c h o l s o nS, . C .R o b i n s o na n d K e n H a l l a l o n g
D
a
y t o c o m p l e t i n ga s m a l l
R
e
m
e
m
b
r
a
n
c
e
o
n
c a n a d i a nA r t i s t ) v o l u n t e e r etdh e i r s k i l l s
who
had becomecaught
but
war
veteran,
aged
that had beenstartedby an
Greenhouse
weather'
years
and cold
up by the advanceof both
P a g e2 3
D e s p i t ea v e r y c r u e l w i n t e r a n d a l o n g p e r i o do f d r y w e a t h e rt h i s s u m m e r ,t h e r e
a p p e a rtso b e q u i t ea g o o db u d s e tf o r b l o o mn e x t s p r i n g .
T h e F a l l c o l o u ra m o n gg r o u n dc o v e r sa n d e r i c a c e o upsl a n t ss t a r t e dm u c he a r l i e tr h a n
u s u a li n t h e M a r i t i m e sa n d w a s p r o b a b l yt h e b r i g h t e sat n d m o s t p r o l o n g e df o r m a n y
years.
MONTREAL ProfessorJ. Ronsley
S o c i e t yi n t h e M o n t r e a la r e a w i l l h o l d t h e i r f i r s t
M e m b e r so f t h e R h o d o d e n d r o n
a very
s t h i sa r e ac o m p r i s e
m e e t i n go n J a n u a r y1 2 , 1 9 1 3 .R h o d o d e n d r oenn t h u s i a s ti n
exclusivg
e r o u p- t h a t i s t o s a y ,t h e r ea r ev e r y f e w o f u s , b u t w e l i k e t o t h l n k w e
. t p r e s e n t h e r ea r e s o m e
w i l l b e m u c h m o r e n u m e r o u sw i t h i n t h e n e x t f e w y e a r s A
a m o n gu s w h o h a v en o t y e t p l a n t e da r h o d o d e n d r obnu t w h o i o i n e dt h e S o c i e t ya sa
. t h e r sh a v eb e c o m ei n t e r e s t e dp,o s s i b l y
m a t t e r o f p o t e n t i a li n t e r e s ta n d f r i e n d s h i pO
f a n a t i c , w i t h i n t h e l a s t c o u p l e o f y e a r s ,a n d a t l e a s tt w o m e m b e r sh a v e l o n g e r
e x p e r i e n cger o w i n gt h e r h o d o d e n d r o nasn d a z a l e atsh a t n e a r l ye v e r yn u r s e r y m aann d
h o r t i c u l t u r i si tn t h e a r e aa s s e r tesm p h a t i c a l lwy i l l n o t g r o wh e r e .
W h i l e t h e r e a r e c e r t a i n l ys o m eb e a u t i f ugl a r d e n si n M o n t r e a l i,t i s s t r i k i n gh o w l i t t l e
i m a g i n a t i o na s a g e n e r arl u l e o n e f i n d s i n t h e c h o i c eo f p l a n t m a t e r i a le, v e nf o r s o
r e l a t i v e l ys e v e r ea c l i m a t e .P e r h a ptsh e n u r s e r y m einn t h e a r e a a r el a r g e l yr e s p o n s i b l e :
t h e b u s i n e s s m adno m i n a t e st h e h o r t i c u l t u r i sitn n e a r l ya l l o f t h e m ,a n d s i n c el i l a c s ,
h o n e y s u c k l em
s ,o c k - o r a n g easn, d t h e l i k e a r e t h e s a f e sat n d m o s t p r o f i t a b l ei t e m st o
t o r ev a r i e t yc a n b e
t
h
e
r
e
sell,
i s l i t t l e i n t e r e s it n e x p l o r i n gf u r t h e ra f i e l d .S o m e w h am
f o u n d i n T o r o n t o - b a s efdi r m s ,b u t t h e s e t, o a l l a p p e a r a n coep, e r a t ea s b r a n c ho u t l e t s
which are of secondary importance to. the home offices, with the obvious
c o n s e q u e n c ePsr.o f e s s i o nhaol r t i c u l t u r i s tosu t s i d et h e n u r s e r yb u s i n e sasl s od i s c o u r a g e
and azaleas.
The foremanat the
the growingof "exotic" plantssuchasrhododendrons
t
h
a
t
e
v
e
n
A
z
a
l
e
a
S
c
h
l i p p e n b a cchai n n o t
M o r g a nA r b o r e t u m f, o r i n s t a n c ei s, c o n v i n c e d
g
r
o
w
n
p
e
r
s
o
n
s
o
t
h
e
r
c
o
n
n
e
c
t
e
w
d
i
t
h
t
h
e
a
r
b
o
r
e
t u mh a v ed i s p l a y e d
be
s u c c e s s f u l layn, d
e
n
c
o
u
n
t
e
r
e
a
d
s
i
m
i
l a rl a c ko f i n t e r e s t
r
e
m
a
r
k
a
b
l
e
o
f
R
u
d
i
B
e
h
r
i
n
g
h
a
s
a
lack interest.
p
l
a
n
t i n go f r h o d o d e n f
o
u
n
d
t
h
e
s
m
a
l
l
t
h
e
M
o
n
t
r
e
a
l
G
a
r
d
e
n
s
w
,
h
e
r
e
h
e
at
Botanical
d r o n sg r o w i n gw i t h o u t a m u l c h .l t w o u l d a p p e a rt h e r ei s a c o n c e r t e de f f o r t t o k e e p
r h o d o d e n d r o nosf f t h e i s l a n d .
variety of both
Yet books on the subject all indicatethat there is a considerable
rhododendrons
and'azaleas
which will thrivehere,and membersof the PlantResearch
I n s t i t u t ei n O t t a w a h a v e w r i t t e n o n r h o d o d e n d r o cn u l t u r et h e r e ,w h e r ei t i s e v e n
c o l d e rt h a n i t i s i n M o n t r e a lM
. o r e o v e rw, h i l em y o w n e x p e r i e n cies s t i l l t o o l i m i t e dt o
p r o v i d em u c h e v i d e n c eo f t h e i r a d a p t a b i l i t ya, t l e a s tt w o o f o u r m e m b e r sd o h a v e
s u f f i c i e net x p e r i e n cteo d o s o . D r . L o u i sS c h w a r t zh a sa b e a u t i f ugl a r d e ni n s u b u r b a n
up to twenty-fiveyearsold. He
Sennevillecontainingovera hundreddeciduousazaleas
providesno winter protection,but the plantsrangeup to six and sevenfeet tall and
b l o o m s p e c t a c u l a rel ya c hy e a r .M r . W . H .G i l b e r t o f L a k e f i e l dQ, u e b e c- o f f t h e i s l a n d
PaEe 24
where the temperaturesometimesdrops to -4Oo has had over fifty evergreen
r h o d o d e n d r o nf o
s r o v e rf i v e y e a r s .H e d o e sp r o v i d ew i n t e rp r o t e c t i o nb, u t i n a d d i t i o n
he has a southernexposureand a strongwind off
to the extremelylow temperatures
the lake. He reportslittle winter damage,evento flower buds. lt appearsthen' that
and especiallyon the
rhododendronsand azaleascan be grown here successfully,
the
lsland of Montrealwherethe climateis considerablylessseverethan throughout
for
cover
quite
snow
dependable
surroundingarea, and where also there is a
said
Leach
has
(David
protection,at leastfor the alpinesand other low growingtypes.
would survive,and that in
that with snow protectionplantsof H-3 and H-4 hardiness
Finlandsomevery tenderonesthrive becausethey are coveredwith snowall winter')
wrong.
We hopeto provethe localprofessionals
, h i c h w i l l i n c l u d em e m b e r sf r o m t h e n e i g h b o r h o oodf Q u e b e c
A t o u r f i r s t m e e t i n gw
C i t y a n d O t t a w aa s w e l l a s M o n t r e a lL, e s H a n c o c kw i l l p r o v i d eu s w i t h a s l i d el e c t u r e
Mr'
a n d , u n d o u b t e d l yt,h e a n s w e r st o i n n u m e r a b lqeu e s t i o n sA. l s o w e h o p et o h a v e
with
ottawa
in
lnstitute
Research
Plant
tlre
of
Cole
A.R. Buckley and Mr. Trevor J.
and
us as well. lt goes without sayingthat we feel most fortunate in both cases,
s
u
c
c
e
s
s
f
u
l
'
h
i
g
h
l
y
b
u
t
b
e
s
m
a
l
l
,
t
o
t h a tw e e x p e c t h e m e e t i n g
M I D L A N D ,O N T A R I O E . E g e l k r a u t
especially
can be quite an experience,
and rhododendrons
Gettingstartedwith azaleas
t
wo azalea
w
i
t
h
o
f
f
t
o
s
t
a
r
t
d
e
c
i
d
e
d
1
9
5
8
I
l
n
i
t
l
a
b
o
u
t
if you don't know too much
acid
pit
for
isolating
a
of
the
construction
showed
plants.A gardenbook illustration
w
ord,
f
o
r
w
o
r
d
i
n
s
t
r
u
c
t
i
o
n
s
t
h
e
i
t
.
l
f
o
l
l
o
w
e
d
s
u
r
r
o
u
n
d
i
n
g
s o i l f r o m t h e a l k a l i n es o i l
on
bricks
and
bottom
the
on
put
and
cinders
sand
across,
and
diggingthreefeet down
also
b
o
o
k
T
h
e
o
u
t
s
i
d
e
'
t
h
e
a
r
o
u
n
d
w
e
n
t
c
i
n
d
e
r
s
p
l
a
n
k
s
a
n
d
top o? it. Wood
f o r a c i d i f i c a t i oonf t h e s o i l '
r e c o m m e n d eadl u m i n u ms u l p h a t e
results:the
The pit was locatedin front of a group of sprucetreeswith the following
a
r o u n dt h e
b
u
r
r
o
w
t
o
w o o d p l a n k sr o t t e d , b r i n g i n gm o l e sw h i c h d i d n ' t s t o p i u s t
the pit
invaded
roots
tree
the spruce
planksbut alsoliked to tunnel undermy azaleas;
a
zaleas;
o
f
t
h
e
r
o
o
t
s
t
h
e
a n d t o o k o v e rc o m p l e t e l yt;h e a l u m i n u ms u l p h a t eb l a c k e n e d
place!
first
the
in a word - Disaster!And to top it all off, my soil wasacid in
, u r V i c e P r e s i d e nst ,a v e dm y l i f e ,o r s h o u l dI s a y ,m y
T h e n i n 1 9 5 9M r . K e n D u n c a no
azaleasin the
I wonder if he still remembershis informativearticle about
azaleas.
a
z
a l e ap l a n t sa r e
a
n
d
r
h
o
d
o
d
e
n
d
r
o
n
T
h
e
, ay 1959.
c a n a d i a nH o m e sa n d G a r d e n sM
idealplace'
the
really
not
is
which
house,
of
the
now locatedon the northwestside
a plastic
and
stone
of
crushed
only
6"
by
from the sidewalk
The plantsare separated
u
s ei t o n
I
d
o
n
'
t
s
t
o
n
e
s
.
t
h
e
o
n
u
s
e
d
i
s
o f f e r r o u ss u l p h a t e
r pplication
s t r i p .A r e g u l a a
i
s
u
s
e
d ,w i t h
3
0
R
x
f
e
r
t
i
l
i
z
i
n
g
F
o
r
i
s
u
s
e
d
.
t h e p l a n t s .F o r w a t e r i n go n l y r a i n w a t e r
Some
well'
very
work
to
seems
it
and
amount,
very careful attention to timing and
C'parvi(Cypripedium
acaule'
and
showy
yellow
Lady Slipperswere put in, pink,
which do very well indeedon rhododendronsoil'
florum, C.reginae\
Page 25
We live in a heavysnow area.Last year we had thirteenfeet of snow,sometimes
a lot
more than that. The plantsare mulchedwiLh4" of pine needlesand oak leaveswhich
are increasedin winter to 8". I enclosethem with plywood panelsto protect from
h e a v y s n o w a n d e x t r e m ec o l d . M i d l a n d i s o n a p e n i n s u l ai n G e o r g i a nB a y . T h e
prevailingwest and northwestwinds blow in from acrossthe lake.Everyyearwe have
one or two very cold days,20o - 25o below zero, with very dry northerlywinds. In
late winter parts of GeorgianBay start to freezeover, the air getting drier. So the
protectionreallypaysoff.
lf there is sometimesa setback,it is no discouragement,
becauseif there was no
c h a l l e n g ien g r o w i n gt h i s b e a u t i f u p
l l a n t i n a c o l d c l i m a t ew
, e w o u l d n ' th a v es o m u c h
f u n d o i n gi t .
WINNIPEG
D r . C . V .G r e e n w a yo, u r f i r s t m e m b e ri n t h e P r a i r i ep r o v i n c e sw, r i t e st h a t h e w o u l d l i k e
to try a plantingin North WestOntarionearKenora.We h4veadvisedhim to startwith
t h e v e r y h a r d i e s st p e c i e s u c ha s R . d o u r i c u ma, n d i t s h y b r i d p . J . M .( p . J . M e z i t t )w. e
wish him every success.
After all, Kenorais below.the50th. parallel,and we haveone
membertrying them in Reykjavik,lceland,abovethe 64th. parallel
Editor
BRITISHCOLUMBIA
Roy Forstergoesto Vancouver,B.C.
W e c o n g r a t u l a toen e o f t h e f o u n d i n gD i r e c t o r so f o u r S o c i e t yo n h i s a p p o i n t m e nat s
Curator of the newly establishedVanDuzen BotanicalGardenin Vancouver,B.C.
Roy is a graduateof Kew Gardens,London, England.He was in chargeof the
r h o d o d e n d r obnr e e d i n gw o r k a t V i n e l a n dO
, n t a r i of r o m t h e t i m e o f i t s i n c e p t i o nu n t i l
recentlywhen it wastakenoverby KennethBegg.One of the resultsof his work there
w a st h e c r e a t i o no f t h e n e w p r i m r o s e
y e l l o wf l o w e r e dr h o d o d e n d r oN
n o . 6 1I 1 . s h o w n
on the front cover and describedmore fully in Kenneth Begg'sarticle. we are
fortunate in having Mr. Forster to representour Society in B.c., which givesus
Directorshiprepresentation
from coastto coast.We print belowhis letterto the Editor
D e a rL e s l i e :
Since I was unableto visit you and many other friends before my departurefrom
ontario, I think that someindicationof my whereabouts
and what I am doingwould
be of interestto the members.
I am Curatorof the VanDusenBotanicalGardenin Vancouver.
This is a new Botanical
Gardenunderdevelopmentby the VancouverBoardof Parksand PublicRecreation.
The foundingof the gardenis an interestinghistory not without somedrama,but in
short, the 55 acresite was savedfrom the handsof housingdevelopers
at the eleventh
hour after constructionhad actuallybegun.
Page 26
T h i s a c h i e v e m e ni st d u e t o t h e v i s i o no f a p u b l i c - s p i r i t egdr o u po f p r i v a t ec i t i z e n sT, h e
P a r k sB o a r d ,a n d t h e e f f o r t so f S u p e r i n t e n d e notf P a r k s ,S . S .L e f e a u xa n d D e p u t y
W.C. Livingston.The resultof thesecombinedefforts is a site that offer"siust about
everything
o n e c o u l d a s kf o r a s a B o t a n i c aG
l a r d e n .P l e a s a n t sl yl o p i n gl a n d ,g o o ds o i l
and magnificentstands of mature conifersall situated high above the city. The
d r a m a t i cv i e w o f d o w n t o w n V a n c o u v e rw i t h t h e c o a s t a rl a n g em o u n t a i n sb e y o n d
p r o v i d ej u s t t h e r i g h t b l e n d o f u r b a n i t y a n d n a t u r a l i s mA. b o v e a l l , t h e g a r d e ni s
c e n t r a l l yl o c a t e da n d c a n t h u s s e r v ea l l t h e c i t i z e n so f V a n c o u v e ar n d s u r r o u n d i n s
m u ni c i p a l i t i e s .
O n e o f m y f i r s t a n d m o s t p l e a s a ntta s k si s t h e o r g a n i z a t i oann d p l a n t i n go f a l a r g e
c o l l e c t i o no f r h o d o d e n d r o n T
s .h e s ea r e b e i n gs e t o u t i n g r o u p sa c c o r d i n g
to hybrid
background.For example all R.griersonionun
hybrids in one generallocation, all
R.catawbiense
hybridsin another.Thus the visitor cango to a particularlocationand
c o m p a r eh y b r i d sd i r e c t l y .A n a d d e dt o u c hm i g h tb e t o a d do n e p l a n to f t h e d o m i n a n t
parentto eachgroup for the purposeof comparison.
sp'ecies
This systemposessome
i n t e r e s t i npgr o b l e m st o s o l v ei n l a n d s c a paer r a n g e m e natn d c o l o r h a r m o n i e-s n o t t o
m e n t i o nt a n g l e dp a r e n t a g easn dg e n e t i cd o m i n a n c e .
T h e n a t u r a ls o i l i s a s a n d yg l a c i atl i l l , a c i d ,b u t l o w i n o r g a n i cm a t t e r .w e u s el a r g e
quantitiesof leaves,and local peat-moss.An eye-openerfor me was the use of a
b a c k h o et o m i x t h e i n g r e d i e n t sT.h i s b r e a k su p a n y h a r d p a na n d l e a v e st h e m i x
"chunky".
T h i s i s b e t t e r t h a n t h e h o m o g e n i z e ed f f e c t p r o d u c e db y a r o t o t i l l e r .
H o w e v e ra, t t h e r i s k o f s e e m i n g
f a c e t i o u sI m u s ta d d , t h a t t h e m e t h o di s e c o n o m i c a l
o n l y i f y o u c a r r ya b a c k h o ei n y o u r i n v e n t o r y .
O u r r h o d o d e n d r ocno l l e c t i o n w
s i l l b e q u i t e e x t e n s i v eW. ec a nb e o f s e r v i c teo O n t a r i o
r h o d o d e n d r o nbsr e e d e rbsy p r o v i d i n gp o l l e no f h i g hq u a l i t y" t e n d e r " r h o d o d e n d r o n s .
W e w i l l a l s ob e a b l et o o f f e r t e s t i n g f a c i l i t i e s f o r n e w h y b rIindds e. e da! m o n g t h e f i r s t
t o b e p l a n t e dw i l l b e s o m e o f t h e H . R . l . O .h y b r i d sp r o d u c e dd u r i n g m y y e a r sa t
Vineland,
To return to the Bulletin, may I offer a suggestionin connectionwith the seed
e x c h a n g el?f s e e d sa r e d i s t r i b u t e da s s p e c i etsh e p a r e n tp l a n ts h o u l db e s e l f e do r h a n d
p o l l i n a t e dw i t h p o l l e nf r o m a p l a n to f t h e s a m es p e c i e sI .t h i n k t h i s i s m o s ti m p o r t a n t .
A l m o s t i n v a r i a b l ys, e e df r o m o p e n p o l l i n a t e ds p e c i egsi v e sa n u n d i s t i n g u i s h el odt o f
hybridsoften inferiorto the parent.
I d o n o t w i s h t o s o u n dl i k e a p u r i s t ,b u t I f e e l s t r o n g l yt h a t o n e o f t h e d u t i e so f o u r
Societyis to preserve
our heritageof rhododendronspecies.
lt may be usefulto point
o u t t h a t t h e f u t u r eo f w i l d r h o d o d e n d r osnp e c i eiss b y n o m e a n s e c u r eA. f t e r a l l ,t h e y
areusedasfirewoodin somepartsof the world.
Y o u r ss i n c e r e l y ,
Roy Forster,
Curator,
V a n D u s eB
n o t a n i c aGl a r d e n s .
Page27
v 0nno
ChnEn
HrH
nffi'
f;f,f#x:,#,,I
ffiil]l
tood?errets
RHODODENDRON
\lltsl
ORTHO
PHIITAIIRose
& Garden
fungicido
ts0T0x
InsectSpray
.
Conlrols all major dileases
ol rose3.
Also ercellenl lor contrcl ol mo3l dl3easos on a wide verlety ol llowoF lnd
rhrubs.
. tay be combined wilh ISOTOX Insect
Spray and ORTHO Llquld Ro6e Fcbd
lor all plrpo3e inBecl and dlaeete con(Don'l use cofitrol trd lenilizallon.
bination spray on kuils or vegelabl$.)
. MullLpurpose
garden
insecticide. Kills
almost ell insecls
on roses, llowers,
lrees, shrubs, around
dwellinqs, elc.
. Economical concentrate-kills
tast and
conlinuF
lo kill for 2 lo 3 weeks.
. May be combined wilh ORTHO PHALTAN Rose & Garden Fungicide lo. all.
purpose insecl and disease conlro..
+..--
R*
3lll9.,,,,lml
Sizellll
Qucen
6 GallonskJ
.
Petenled, Inlemel meterlng l€t3
a3suieDacaMeoy, under verylng
.
Fell 3praying-no
Contains: 75oloPhallan (Folpel).
New Systemic Aclion
Contains: Meta-Syslor, Seyin and Kellhane.
pumping,
no nlring.
.;ig:r
T"".?::::"
Tfi :"::
""'-"
.
ifi'ilii^t1iui:ff#
you
less
spray
and
right
Spray
. i:'fJ"l;:i"'J'r"*
gre.re,re.ch.
(hdrcn
V
FREE 0nIH0 Lawn& GardenBook
Write
or
Phone
c H E V R O NC H E T T C A( tC A N A D AL)t M t r E D
1 0 6 O n d u s t r yS r _ e e t
O a k v r l l eO. n t a r r o
I4t6t 845-3e41
rorono, 364 2876
beauty
isourbrcfurcss!
Garden
F r o n t C o v e r Y e l l o wf l o w e r e dh y b r i db r e da t V i n e l a n df r o m R . s m i r n o w ixi
ha
- r d yi n t h e N i a g a r aP e n i n s u l a
L a d yB e s s b o r o u gH
Above
T h e b e a u t i f u dl ,o u b l ep i n kG h e n ta z a l e aC,o r n e l l l e .
l a n d s c a pseh r u b s .
T h e G h e n t sa r em o s ta t t r a c t i v e
Below
t n eo f t h e r i c hy e l l o wE x b u r yh y b r i d s
G o l d e nS u n s e O
f'ffi':*,r
,-i=.
W.,,*"
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