FLO and GRO System

GROW-CUBES/GROW-CHUNKS
vs. Clay Rocks
• Use either GROW-CUBES or GROWCHUNKS (also known as croutons) for
your plant medium.
• If using clay rocks, mix in GROW-CUBES
(50/50 mix). The more croutons, the better the growth.
• More feeder roots develop in stonewool
than in other media, providing for faster
plant growth.
• Grodan Rockwool is lightweight, making
it easy to transport and pour.
• Keep your system cleaner by using Grodan products (no dirty clay sediment at
the bottom of the buckets).
• Experience easier transition (less
shock) from plants growing in Grodan
starters or GRO-BLOCKS transplanted
into a bucket filled with
more Grodan.
Watch video on How To Use Grodan on
WWW.GRODAN101.COM.
Using Grodan in
Hydrogardening Bucket Systems
Did you know that roots will adapt
to the media they grow in? For
example, a course-grade medium
(such as rocks) produces thicker
roots to anchor the plant. Whereas a
fine-grade medium like Grodan will
produce more feeder roots that are
thinner, like tiny hairs. These tiny
hair-like roots that plants produce
have a greater surface area which
enables them to uptake nutrients
more efficiently.
More feeder roots means
faster plant growth.
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Grodan is classified by W.H.O. (World Health Organization) as a bio-soluble
product. International cert. ISO 9001 & 4001, and European Ecolabel.
Information compiled here is in accordance with the latest knowledge at time
of writing however Grodan cannot assume liability for the use of its contents.
© Copyright 2013 Grodan, Inc. Grodan and Pargro are registered trademarks.
A-OK Starter Plugs, MINI-BLOCKS, MACROPLUG, GRO-BLOCKS, GRO-SLABS,
GROW-CUBES, GROW-CHUNKS, HUGO, BIG MAMA, UNI-SLAB, GRO-SMART TRAY
and Pargro QD (Quick Drain), are trademarks of Grodan, Inc. All rights reserved.
Printed APR/2013 by Grodan, Inc.
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Why Grodan?
Using Grodan Rockwool in the Flo-n-Gro® System
For greater success with your Flo-n-Gro®, skip
the rolling clay balls and other media. There is a
natural product that works better – Grodan.
The following products
are perfect for use in the
Flo-n-Gro® system:
1
GROW-CUBES™ (small croutons) can be used on
their own or mixed in 50/50 with clay rocks to
improve growth in place of just rocks.
GROW-CHUNKS™ (large croutons) are the larger
version of the croutons. Use these on their own
(or mixed with GROW-CUBES) since the pieces are
too large to easily mix uniformly with clay rocks.
GROW-CUBE vs. GROW-CHUNK
• Make sure the grow area is clean.
• Set up the system according to the Flo-n-Gro®
instructions.
• Use GROW-CUBES, GROW-CHUNKS or a mixture
of both sizes.
• If mixing with clay balls, choose GROW-CUBES.
• We recommend a 50/50 mix. The more Grodan
used, the better the results.
3
• Fill the system’s reservoir with a hydroponic solution. For example, EC 1.5 and pH 5.8 works well.
• We recommend using Grodan starters and GROBLOCKS™ for the best transplants, but you can
transplant from any medium into the croutons.
• Carefully transplant each plant into the buckets.
• Once transplanted, begin your watering cycle.
2
• Generally no pH adjusting is needed, just soak
your croutons in plain water before use. But if
you have hard water (high pH), soak in water
adjusted to pH 5.5.
• Drain the croutons to waste by pouring them in
the mesh inserts provided with your system.
• When fully drained, place the mesh inserts into
the blue buckets.
4
• Flood once a day for 15 minutes one hour after
lights come on to achieve sufficient growth. Do not
feed more than twice daily for best results.
• Adjust flooding frequency and cycle length according to the growing environment and stage of plant
growth. (Using this sytem outdoors may require
more than two floods per day with GROW-CUBES.)
• Check pH and increase EC (or PPM) as the plants
grow. Switch to a bloom solution when the plants
begin to flower.
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