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GrowFAQ : Cloning : for Hydroponic systems
: Perlite &
vermiculite

How do I clone in perlite & vermiculite?

Added by:
~shabang~  Last edited by:
~shabang~  Viewed: 576 times

Rated by 2 users:
9.50/10

Perlite and vermiculite, combined at a
1:1 ratio, make an effective, cheap, and widely
available cloning medium. Simply mix 50% perlite with
50% vermiculite, add enough water so it's moist, and
fill your small containers.

The plants to be
cloned should be on a vegetative light cycle (18 to 24
hours of light) and should not be overfed. Excess
Nitrogen in the stems can slow down rooting. You can
take cuttings from plants that are blooming and heavily
fertilized, but your success rate would be lower.

1) Prepare your mother plants at least 6 hours
in advance with a fresh drink of water so they are fully
loaded before you cut.

2) Using a screwdriver,
toothpick, or alien probe, make a small hole in the
medium, about 3 cm deep at each clone site.

3)
Take the growing tips from the mother you wish to
propagate with sharp scissors-- they should be around 6
to 9 cm in length.

4) Cut off all leaves except
for the top 1 or 2 plus the small growing shoot.

5) Recut the stem end with a sharp X-acto or
scalpel, making it as angled as possible for large
surface area contact and water uptake.

6)
Optionally dip the cut end into a rooting hormone
containing fungicide (Rootone F is cheap and widely
available, very effective)

7) Insert into the
medium, gently pat the hole closed. Keep under
fluorescent lighting, misting them daily for the first
few days if your climate requires. You might have to
lightly water the medium once or twice before roots show
in 7 to 14 days.

There are different
"grades" or sizes of perlite and vermiculite. For
cloning, I prefer the small to medium perlite and the
medium to large vermiculite, but don't worry if you
can't find the exact size you're looking for. The 50/50
mix holds water rather well when there are no plant
roots sucking it up, so don't overwater your cuts.

For an alternative view, read Oldtimer1's excellent mother/clone series. You can
easily substitute 50/50 P/V into his system of taking
cuts.

~s

Last modified: 03:28 - Dec 04,
2000

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faq:613 "How do I clone in perlite &
vermiculite?"