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SUCCESSFUL CUTTINGS
by Professor Hydro
Taking cuttings is one of the most popular ways to
propagate a plant. Often called "cloning" it is a very good method to get
multiple plants that are genetically identical to the "mother" plant. Many
people feel intimidated by the process, and are a bit leery to attempt
"cloning". If you are one of those people, relax, it's a relatively easy
process.
What follows are step by step instructions for a
simple procedure that works for most types of both hardwood and softwood plants. (NOTE:
not all plants can be cloned in this manner, some plants may in fact be impossible to get
cuttings from).
WHY TAKE CUTTINGS?
There are several reasons that you may want to clone
your plant, the most obvious being, that you don't have any seed. Cloning might be your
only option in this case. Another reason that you might want to take cuttings is to
control the Quality of the plant(s). Let me explain: Every seed,
like every human being, is slightly different. Genetically, no two plants are the same,
DNA works in plants much the same way as humans. So if you have a plant that is just what
you want it to be you can take cuttings to "clone" your special plant. Over time
you could make about a bazillion genetically identical clones if you wanted to.
One reason to clone your plants that is often
overlooked, is that it's often Faster than starting from seed.
Some plants will produce a rooted, growing plant from a clone before the seeds of the same
plant can even sprout. Saving a lot of time.
WHAT YOU'LL NEED
A SINGLE EDGE RAZOR BLADE - Must be sharp!!
BACK-UP BLOCK
- A piece of Styrofoam, wood or plastic
approximately 2"x2".
SHOT GLASS - Or similar small glass or plastic container. Or similar small
glass or plastic container.
- GROWING MEDIUM - Rapid Rooters, Rockwool or Oasis cubes, Pro-mix, coconut fiber or one of
several other suitable growing media.
SEED TRAY WITH CLEAR HUMIDITY DOME
ROOTING HORMONE - You will need a good quality gel,
liquid or powdered rooting hormone such as Woods, Clonex, Olivia's, Dip & Grow etc.
Although you can use a powdered rooting hormone, in My opinion they are much harder to
work with resulting in a reduced success rate.
SPRAY BOTTLE WITH WATER
RUBBING ALCOHOL
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*NOTE: Simply
Hydroponics and Organics has several inexpensive "Propagation Kits" that
contains everything that you need to propagate successful cuttings. CLICK HERE for more information.
BEFORE YOU START
This might sound obvious, but you should only use
healthy plants to take cuttings from. The healthier the "mother " plants the
better success you will have with your clones. You should take a few more cuttings than
you need and then select the best ones to use and throw away any that are unhealthy.
You will need to leach the nitrogen out of the
mother plant(s) by watering them heavily with pH adjusted water only (no fertilizer) for
two or three days before you take the cuttings. This is an important step because the
nitrogen stored in the plant will retard rooting.
Decide what you are going to use for growing medium.
Most people use either Rapid Rooters, Rockwool or Oasis cubes. It has been our experience
that Rapid Rooters will result in a greater success rate than the other mediums. Rapid
Rooters are 100% organic, made from composted tree bark and latex. The composted bark has
a naturally occurring rooting hormone that helps speed rooting. You can also use many
different mediums successfully, use plastic cups with holes cut in the bottom to hold
coconut fiber, a Perlite & Vermiculite mix or other loose type growing medium. Do not
use regular dirt or Peat Pellets as they stay too wet and can rot the stem of the cutting.
You will need to pre-soak your growing medium before you start, using pH balanced water.
Distilled water is the best thing to use, but any Good water
source will work. (NOTE: Most growing medium need to be soaked in pH 6 to pH 7 water,
Rockwool needs to be soaked for 24 hours with water adjusted to a pH of 4.5 to 5).
Make holes in the top of the growing medium that are
about the same size or a little smaller than the stems of the cuttings. You do not want to
force the cutting into the growing medium.
It is critical that you sterilize everything before
you start, because cuttings are very susceptible to fungus,
viruses and diseases until they root. Use rubbing alcohol on your hands, the razor blade
and the cutting block. Rinse the shot glass (or whatever you are using) with alcohol, dry
it and then fill it 3/4 full with rooting hormone, and set it aside for now.
Work quickly but carefully. When you make the cut
that separates the clone from the mother, you must get it into the rooting hormone as
quickly as possible to prevent air from getting pulled into the stem. Please be careful
not to cut yourself with the razor blade. (The lawyers made me say it).


CARE AND FEEDING
INSTRUCTIONS
Congratulations! you have now successfully
taken cuttings, now the challenge is to keep them alive long enough to root. The cuttings
are obviously very vulnerable at this point and must be handled with care. If you follow
the steps below you should have few problems.
- Once you have your cutting(s) in the growing medium mist them with the spray bottle
filled with water and place them in the tray. Mist the inside of the clear humidity dome
and place dome over the tray. (NOTE: The
cuttings need some ventilation and a couple of small holes in the dome will usually do the
trick).
- Remove the dome and mist the cuttings 2 or 3 times a day. This keeps the cuttings from
drying out and also changes the air under the dome. This step is critical, the cuttings
have no way to replenish lost moisture because they have no roots. Mist the inside of the
dome and replace on tray. The humidity under the dome needs to be about 90 % until roots
appear on the cuttings. (NOTE: Be careful that the air under the dome doesn't get too
warm, if it is, you may have to increase the amount of venting, and increase the number or
mistings per day). Cuttings need to be kept between 72 and 80 degrees Fahrenheit. To hot
or cold will inhibit root growth. If you live in a cold climate you may need a heated
propagation mat.
- The cuttings are going to need light, you need bright light, but not too intense.
Dappled sunlight if you are leaving your cuttings outside. Indoors you can use a double
tube fluorescent fixture with both a cool white bulb and a warm white bulb in the fixture
(or two "grow" tubes). This will give a good, balanced light spectrum.
Fluorescent light doesn't penetrate so you must keep the lights very close to the plants
(1-2 inches above the plants).
If you are using a Metal Halide or High Pressure Sodium fixture you must keep the cuttings
much further away (2 - 3 feet away for 175 - 400 watt bulbs and 4 - 6 feet for a 1000 watt
bulb).
The lights should be turned on for 18 to 24 hours a day.
- To water the cuttings you can use either plain distilled water (or other Good
Quality Water), or you can add a very mild fertilizer such as Olivia's
Cloning Solution or Wilder's Clone Root Concentrate, you can also use a 1/4 strength
general purpose hydroponic fertilizer solution. Don't forget to adjust the pH of the water
/ nutrient solution (5.5 for rockwool, 6.5 for most everything else).
- Water the cuttings every 2 days unless you live in a very dry climate then you should
water every day. Never let the growing medium dry out. Do not let it set in water either,
or the stem will rot. (NOTE: A great way to water the cuttings is to use
two trays, one with holes and the other without. Fill the tray without
holes about half way with water and then slowly lower the tray with the
holes (and cuttings) into it. Let sit for a few moments and them slowly raise the tray
back out and let it drain). Small Hydroponic systems are available to automate the
watering cycles of the cuttings, greatly reducing the amount of manual labor.
- After about a week you can test to see if your plants have started to root. Remove the
humidity dome and leave it off for an hour or two. If the plants have not wilted at all
then they probably have enough root development to support themselves. If no wilt is
noticed leave the dome off, if they are wilted, spray the cuttings and dome and replace
the dome on the tray. Once you have determined that the plants can support themselves,
stop misting the cuttings and leave the humidity dome off. (NOTE: Once
the plants have roots, constant misting can actually be harmful to the plants).
- If the lower leaves start to turn yellow and die, don't worry, it is perfectly normal.
It is the plant feeding off of itself to sustain life, moving valuable nutrient and water
from the older growth. Do not remove any dead growth until the plant is well rooted. If
you remove the dying growth the plant can starve and die completely.
- When the cuttings are completely rooted you can move them into your hydroponic system or
the soil.

FINAL NOTES
"Cloning" is easy once you get the hang of it. You must always
remember that every step must be done properly, if anything goes
wrong you will get less than satisfactory results. We suggest that the first time you take
cuttings take twice as many as you need (if possible). With a little practice this method
of propagation should produce a 95 to 100 percent success ratio.
The use of distilled water can drastically increase your success ratio,
especially if you don't have good quality water where you live.
This is one "Tried and True" method of propagation that works
well on most types of plants. There are several other ways to "clone" your
plants, including, air layering, dividing, and tissue culture. There is even a hydroponic
system that does a good job of rooting cuttings that uses no growing medium at all, once
the cuttings form roots you simply transplant them to whatever growing medium you will be
using.
Recommended reading: "Gardening Indoors with Cuttings"
by George F. Van Patten and Alyssa F. Bust.
For more information on propagation products CLICK
HERE.

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