GERMINATION- Cannabis Marijuana seeds Growing Guide
Germinate seeds in sterile soil (for planting outdoors) or
a hydroponic medium of rockwool or vermiculite. DO NOT (!) use
a Jiffy cube #7 to germinate seeds. Informal tests and
experience show these peat cubes do not work well and stunt
the plants growth. Planting in vermiculite gives the seedling
so much oxygen, and are so easy for roots to grow in, that the
plants look large 1 week after germination!
Keep them moist at all times, by placing seeds in
vermiculite filled 16oz cups with holes in the bottom, placed
in a tray of weak nutrient solution, high in P. Rockwool cubes
also work extremely well. When the seed sprouts, place the
rockwool cubes into larger rockwool cubes. No repotting or
transplanting, and no soil mixing!
You can germinate seeds in a paper towel. This method is
tricky; it is easy to ruin roots if they dry out, or are
planted too late after germinating. Paper towels dry out REAL
FAST! Place paper towel in a bowl, saturated with weak
nutrient solution (not too much!), and cover with plastic wrap
to keep it from drying out. Put bowl in a warm area; top of
the gas stove, water heater closet, or above warm lamps. Cover
with black paper to keep out light. Check every 12 hours and
plant germinated seeds with the grow tip up (if possible) in a
growing medium as soon as the root coming out of the seed is
1/16" or longer. Use tweezers, and don not touch the root
tip.
Transplant as little as possible by germinating in the same
container you intend to grow the plant in for a significant
period of time. Just plant in vermiculite or rockwool. You
will be amazed at the results! 90% germination is common with
this method, as compared to 50% or less with Jiffy Cubes.
(Your milage may vary.)
5-55-17 plant food such as Peters Professional will
stimulate root growth of the germinating seed and the new
seedlings. Use a very dilute solution, in distilled water,
about 1/3 normal strength, and keep temperatures between 72-80
degrees. Warm temperatures are very important. Many growers
experience low germination rate if the temperatures are out of
this range. A heating pad set to low or medium may be
necessary, or a shelf constantly warmed by a light may do, but
test it with a few seeds first, before devoting next years
crop to it. No light is necessary and may slow germination.
Cover germinating seeds with black paper to keep out light.
Place seedlings in the light once they sprout.
Plan on transplanting only once or twice before harvest.
Use the biggest containers possible for the space and number
of seedlings you plan to start. Plants will suffer if
continuously transplanted and delay harvesting. You will
suffer too, from too much work! 13 2-liter plastic soda
bottles filled with vermiculite/pearlite will fit in a cat box
tray, and will not require transplanting for the first
harvest, if you intend to grow hydroponically. Transplant them
for a second regenerated harvest.
Cut holes in the bottom of containers and fill the last few
inches at the top with vermiculite only, to start seeds or
accept seedling transplants. Since vermiculite holds water
well, wicks water well, but does not hold too much water,
roots always have lots of oxygen, even if they are sitting in
a tray full of water. A hydrogen peroxide based plant food is
used to get extra oxygen to the plants when the pans are kept
continuously full. The water can be allowed to recede each
time after watering, before new solution is added. This allows
the plants roots to dry somewhat, and make sure they are
getting enough oxygen.
Use SuperSoil brand potting soil, as it is excellent and
sterilized. If you insist on using dirt from the yard,
sterilize it in the microwave or oven until it gets
steamy.(NOT RECOMMENDED) Sterilize the containers with a
bleach solution, especially if they have been used a previous
season for another plant.
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