Indoor Marijuana Cultivation
1. Introduction:
Growing marijuana indoors is fast becoming an American Pastime. The
reasons are varied. With the increased interest and experimentation in
house plant cultivation, it was inevitable that people would apply their
knowledge of plant care to growing marijuana. Many of those who
occasionally like to light up a joint may find it difficult to locate a
source or are hesitant to deal with a perhaps unsavoury element of
society in procuring their grass. There is, of course, the criminal
aspect of buying or selling grass; Growing marijuana is just as illegal
as buying, selling, or smoking it, but growing is something you can do
in the privacy of your own home without having to deal with someone you
don't know or trust. The best reason for growing your own is the
enjoyment you will get out of watching those tiny little seeds you
picked out of you stash sprout and become some of the most lovely and
lush of all house plants.
2. Anyone Can Do It
Even if you haven't had any prior experience with growing plants in
you home, you can have a successful crop of marijuana by following the
simple directions in this pamphlet. If you have had problems in the past
with marijuana cultivation, you may find the solutions in the following
chapters. Growing a marijuana plant involves four basic steps:
a. Get the seeds. If you don't already have some, you can ask your
friends to save you seeds out of any good grass they may come across.
You'll find that lots of people already have a seed collection of some
sort and are willing to part with a few prime seeds in exchange for some
of the finished product.
b. Germinate the seeds. You can simply drop a seed into moist soil,
but by germinating the seeds first you can be sure that the seed will
indeed produce a plant. To germinate seeds, place a group of them
between about six moist paper towels, or in the pores of a moist sponge.
Leave the towels or sponge moist but not soaking wet. Some seeds will
germinate in 24 hours while others may take several days or even a week.
c. Plant the sprouts. As soon as a seed cracks open and begins to
sprout, place it on some moist soil and sprinkle a little soil over the
top of it.
d. Supply the plants with light. Flourescent lights are the best.
Hang the lights with two inches of the soil and after the plants appear
above the ground, continue to keep the lights with two inches of the
plants. It is as easy as that. If you follow those four steps you will
grow a marijuana plant. To ensure prime quality and the highest yield in
the shortest time period, however, a few details are necessary.
3. Soil
Your prime concern, after choosing high quality seeds, is the soil.
Use the best soil you can get. Scrimping on the soil doesn't pay off in
the long run. If you use unsterilized soil you will almost certainly
find parasites in it, probably after it
is too late to transplant your marijuana. You can find excellent soil
for sale at your local plant shop or nursery, K-Mart, Wal Mart, and even
some grocery stores. The soil you use should have these properties for
the best possible results:
a. It should drain well. That is, it should have some sand in it and
also some sponge rock or pearlite.
b. The ph should be between 6.5 and 7.5 since marijuana does not do
well in acidic soil. High acidity in soil encourages the plant to be
predominantly male, an undesirable trait.
c. The soil should also contain humus for retaining moisture and
nutrients.
If you want to make your own soil mixture, you can use this recipe:
Mix two parts moss with one part sand and one part pearlite or sponge
rock to each four gallons of soil. Test your soil for ph with litmus
paper or with a soil testing kit available at most plant stores. To
raise the ph of the soil, add 1/2 lb. lime to 1 cubic foot of soil to
raise the ph one point. If you absolutely insist on using dirt you dug
up from your driveway, you must sterilize it by baking it in your oven
for about an hour at 250 degrees. Be sure to moisten it thoroughly first
and also prepare yourself for a rapid evacuation of your kitchen because
that hot soil is going to stink. Now add to the mixture about one
tablespoon of fertilizer (like Rapid-Gro) per gallon gallon of soil and
blend it in thoroughly. Better yet, just skip the whole process and
spend a couple bucks on some soil.
4. Containers
After you have prepared your soil, you will have to come up with some
kind of container to plant in. The container should be sterilized as
well, especially if they have been used previously for growing other
plants. The size of the container has a great deal to do with the rate
of growth and overall size of the plant. You should plan on
transplanting your plant not more than one time, since the process of
transplanting can be a shock to the plant and it will have to undergo a
recovery period in which growth is slowed or even stopped for a short
while. The first container you use should be no larger than six inches
in diameter and can be made of clay or plastic. To transplant, simply
prepare the larger pot by filling it with soil and scooping out a little
hole about the size of the smaller pot that the plant is in. Turn the
plant upside down, pot and all, and tap the rim of the pot sharply on a
counter or the edge of the sink. The soil and root ball should come out
of the pot cleanly with the soil retaining the shape of the pot and with
no disturbances to the root ball. Another method that can bypass the
transplanting problem is using a Jiffy-Pot. Jiffy pots are made of
compressed peat moss and can be planted right into moist soil where they
decompose and allow the passage of the root system through their walls.
The second container should have a volume of at least three gallons.
Marijuana doesn't like to have its roots bound or cramped for space, so
always be sure that the container you use will be deep enough for your
plant's root system. It is very difficult to transplant a five-foot
marijuana tree, so plan ahead. It is going to get bigger. The small
plants should be ready to transplant into their permanent homes in about
two weeks. Keep a close watch on them after the first week or so and
avoid root binding at all costs since the plants never seem to do as
well once they have been stunted by the cramping of their roots.
5. Fertilizer
Marijuana likes lots of food, but you can do damage to the plants if
you are too zealous. Some fertilizers can burn a plant and damage its
roots if used in to high a concentration. Most commercial soil will have
enough nutrients in it to sustain the plant for about three weeks of
growth so you don't need to worry about feeding your plant until the end
of the third week. The most important thing to remember is to introduce
the fertilizer concentration to the plant gradually. Start with a fairly
diluted fertilizer solution and gradually increase the dosage. There are
several good marijuana fertilizers on the commercial market, two of
which are Rapid-Gro and Eco-Grow. Rapid-Gro has had widespread use in
marijuana cultivation and is available in most parts of the United
States. Eco-Grow is also especially good for marijuana since it contains
an ingredient that keeps the soil from becoming acid. Most fertilizers
cause a ph change in the soil. Adding fertilizer to the soil almost
always results in a more acidic ph.
As time goes on, the amount of salts produced by the breakdown of
fertilizers in the soil causes the soil to become increasingly acidic
and eventually the concentration of these salts in the soil will stunt
the plant and cause browning out of the foliage. Also, as the plant gets
older its roots become less effective in bringing food to the leaves. To
avoid the accumulation of these salts in your soil and to ensure that
your plant is getting all of the food it needs you can begin leaf
feeding your plant at the age of about 1.5 months. Dissolve the
fertilizer in warm water and spray the mixture directly onto the
foliage. The leaves absorb the fertilizer into their veins. If you want
to continue to put fertilizer into the soil as well as leaf feeding, be
sure not to overdose your plants.
Remember to increase the amount of food your plant receives
gradually. Marijuana seems to be able to take as much fertilizer as you
want to give it as long as it is introduced over a period of time.
During the first three months or so, fertilize your plants every few
days. As the rate of foliage growth slows down in the plant's
preparation for blooming and seed production, the fertilizer intake of
the plant should be slowed down as well. Never fertilize the plant just
before you are going to harvest it since the fertilizer will encourage
foliage production and slow down resin production. A word here about the
most organic of fertilizers: worm castings. As you may know, worms are
raised commercially for sale to gardeners. The breeders put the worms in
organic compost mixtures and while the worms are reproducing they eat
the organic matter and expel some of the best marijuana food around.
After the worms have eaten all the organic matter in the compost, they
are removed and sold and the remains are then sold as worm castings.
These castings are so rich that you can grow marijuana in straight worm
castings. This isn't really necessary however, and it is somewhat
impractical since the castings are very expensive. If you can afford
them you can, however, blend them in with your soil and they will make a
very
good organic fertilizer.
6. Light
Without light, the plants cannot grow. In the countries in which
marijuana grows best, the sun is the source of light. The amount of
light and the length of the growing season in these countries results in
huge tree-like plants. In most parts of North America, however, the sun
is not generally intense enough for long enough periods of time to
produce the same size and quality of plants that grow with ease in Latin
America and other tropical countries. The answer to the problem of lack
of sun, especially in the winter months, shortness of the growing
season, and other problems is to grow indoor under simulated conditions.
The rule of thumb seems to be the more light, the better. In one
experiment we know of, eight eight-foot VHO Gro-Lux fixtures were used
over eight plants. The plants grew at an astonishing rate. The lights
had to be raised every day. There are many types of artificial light and
all of them do different things to your plants. The common incandescent
light bulb emits some of the frequencies of light the plant can use, but
it also emits a high percentage of far red and infra-red light which
cause the plant to concentrate its growth on the stem. This results in
the plant stretching toward the light bulb until it becomes so tall and
spindly that it just weakly topples over. There are several brands of
bulb type. One is the incandescent plant spot light which emits higher
amounts of red and blue light than the common light bulb. It is an
improvement, but has it drawbacks. it is hot, for example, and cannot be
placed close to the plants. Consequently, the plant has to stretch
upwards again and is in danger of becoming elongated and falling over.
The red bands of light seem to encourage stem growth which is not
desirable in growing marijuana. the idea is to encourage foliage growth
for obvious reasons. Gro-Lux lights are probably the most common
flourescent plant lights. In our experience with them, they have proven
themselves to be extremely effective. They range in size from one to
eight feet in length so you can set up a growing room in a closet or a
warehouse. There are two types of Gro-Lux lights: The standard and the
wide spectrum. They can be used in conjunction with on another, but the
wide spectrum lights are not sufficient on their own. The wide spectrum
lights were designed as a supplementary light source and are cheaper
than the standard lights. Wide spectrum lights emit the same bands of
light as the standard but the standard emit higher concentrations of red
and blue bands that the plants need to grow. The wide spectrum lights
also emit infra-red, the effect of which on stem growth we have already
discussed. If you are planning to grow on a large scale, you might be
interested to know that the regular flourescent lamps and fixtures, the
type that are used in commercial lighting, work well when used along
with standard Gro- Lux lights. These commercial lights are called cool
whites, and are the cheapest of the flourescent lights we have
mentioned. They emit as much blue light as the Gro-Lux standards and the
blue light is what the plants use in foliage growth.
Now we come to the question of intensity. Both the standard and wide
spectrum lamps come in three intensities: regular output, high output,
and very high output. You can grow a nice crop of plants under the
regular output lamps and probably be quite satisfied with our results.
The difference in using the HO or VHO lamps is the time it takes to grow
a crop. Under a VHO lamp, the plants grow at a rate that is about three
times the rate at which they grow under the standard lamps. People have
been known to get a plant that is four feet tall in two months under one
of these lights. Under the VHO lights, one may have to raise the lights
every day which means a growth rate of ate least two inches a day. The
only drawback is the expense of the VHO lamps and fixtures. The VHO
lamps and fixtures are almost twice the price of the standard. If you
are interested in our opinion, they are well worth it. Now that you have
your lights up, you might be curious about the amount of light to give
you plants per day. The maturation date of your plants is dependent on
how much light they receive per day. The longer the dark period per day,
the sooner the plant will bloom. Generally speaking, the less dark per
day the better during the first six months of the plant's life. The
older the plant is before it blooms and goes to seed, the better the
grass will be. After the plant is allowed to bloom, its metabolic rate
is slowed so that the plant's quality does not increase with the age at
the same rate it did before it bloomed. The idea, then, is to let the
plant get as old as possible before allowing it to mature so that the
potency will be a high as possible at the time of harvest. One
relatively sure way to keep your plants from blooming until you are
ready for them is to leave the lights on all the time. Occasionally a
plant will go ahead and bloom anyway, but it is the exception rather
than the rule. If your plants receive 12 hours of light per day they
will probably mature in 2 to 2.5 months. If they get 16 hours of light
per day they will probably be blooming in 3.5 to 4 months. With 18 hours
of light per day, they will flower in 4.5 to 5 months. Its a good idea
to put your lights on a timer to ensure that the amount of light
received each day remains constant. A "vacation" timer, normally used to
make it look like you are home while you are away, works nicely and can
be found at most hardware or discount stores.
7. Temperature and Humidity
The ideal temperature for the light hours is 68 to 78 degrees
fahrenheit and for the dark hours there should be about a 15 degree drop
in temperature. The growing room should be relatively dry if possible.
What you want is a resinous coating on the leaves and to get the plant
to do this, you must convince it that it needs the resinous coating on
its leaves to protect itself from drying out. In an extremely humid
room, the plants develop wide leaves and do not produce as much resin.
You must take care not to let the temperature in a dry room become too
hot, however, since the plant cannot assimilate water fast enough
through its roots and its foliage will begin to brown out.
8. Ventilation
Proper ventilation in your growing room is fairly important. The more
plants you have in one room, the more important good ventilation
becomes. Plants breathe through their leaves. The also rid themselves of
poisons through their leaves. If proper ventilation is not maintained,
the pores of the leaves will become clogged and the leaves will die. If
there is a free movement of air, the poisons can evaporate off the
leaves and the plant can breathe and remain healthy.
In a small closet where there are only a few plants you can probably
create enough air circulation just by opening the door to look at them.
Although it is possible to grow healthy looking plants in poorly
ventilated rooms, they would be larger and healthier if they had a fresh
supply of air coming in. If you spend a lot of time in your growing
room, your plants will grow better because they will be using the carbon
dioxide that you are exhaling around them. It is sometimes quite
difficult to get a fresh supply of air in to your growing room because
your room is usually hidden away in a secret corner of your house,
possibly in the attic or basement. In this case, a fan will create some
movement of air. It will also stimulate your plants into growing a
healthier and sturdier stalk. Often times in an indoor environment, the
stems of plants fail to become rigid because they don't have to cope
with elements of wind and rain. To a degree, though, this is an
advantage because the plant puts most of its energy into producing
leaves and resin instead of stems.
9. Dehumidifying Your
Growing Room
Cannabis that grows in a hot, dry climate will have narrower leaves
than cannabis grown in a humid atmosphere. The reason is that in a dry
atmosphere the plant can respirate easier because the moisture on the
leaves evaporates faster. In a humid atmosphere, the moisture cannot
evaporate as fast. Consequently, the leaves have to be broader with more
surface area in order to expel the wastes that the plant put out. Since
the broad leaves produce less resin per leaf than the narrow there will
be more resin in an ounce of narrow leaves than in one ounce of broad
leaves. There may be more leaf mass in the broader leafed plants, but
most people are growing their own for quality rather than quantity.
Since the resin in the marijuana plant serves the purpose of keeping
the leaves from drying out, there is more apt to be a lot of resin
produced in a dry room than in a humid one. In the Sears catalog,
dehumidifiers cost around $100.00 and are therefore a bit impractical
for the "hobby grower."
10. Watering
If you live near a clear mountain stream, you can skip this bit on
the quality of water. Most of us are supplied water by the city and some
cities add more chemicals to the water than others. They all add
chlorine, however, in varying quantities. Humans over the years have
learned to either get rid of it somehow or to live with it, but your
marijuana plants won't have time to acquire a taste for it so you had
better see that they don't have to. Chlorine will evaporate if you let
the water stand for 24 hours in an open container. Letting the water
stand for a day or two will serve a dual purpose: The water will come to
room temperature during that period of time and you can avoid the nasty
shock your plants suffer when you drench them with cold water. Always
water with room temperature to lukewarm water. If your water has an
excessive amount of chlorine in it, you may want to get some anti-
chlorine drops at the local fish or pet store. The most important thing
about watering is to do it thoroughly. You can water a plant in a three
gallon container with as much as three quarts of water. The idea is to
get the soil evenly moist all the way to the bottom of the pot. If you
use a little water, even if you do it often, it seeps just a short way
down into the soil and any roots below the moist soil will start to turn
upwards toward the water. The second most important thing about watering
is to see to it that the pot has good drainage. There should be some
holes in the bottom so that any excess water will run out. If the pot
won't drain, the excess water will accumulate in a pocket and rot the
roots of the plant or simply make the soil sour or mildew. The soil, as
we said earlier, must allow the water to drain evenly through it and
must not become hard or packed. If you have made sure that the soil
contains sand and pearlite, you shouldn't have drainage problems. To
discover when to water, feel the soil with your finger. if you feel
moisture in the soil, you can wait a day or two to water. The soil near
the top of the pot is always drier than the soil further down. You can
drown your plant just as easily as you can let it get too dry and it is
more likely to survive a dry spell than it is to survive a torrential
flood. Water the plants well when you water and don't water them at all
when they don't need it.
11. Bugs
If you can avoid getting bugs in the first place you will be much
better off. Once your plants become infested you will probably be
fighting bugs for the rest of your plants' lives. To avoid bugs be sure
to use sterilized soil and containers and don't bring other plants from
outside into your growing room. If you have pets, ensure that they stay
out of your growing room, since they can bring in pests on their fur.
Examine your plants regularly for signs of insects, spots, holes in the
leaves, browning of the tips of the leaves, and droopy branches. If you
find that somehow in spite of all your precautions you have a plant room
full of bugs, you'll have to spray your plants with some kind of
insecticide. You'll want to use something that will kill the bugs and
not you. Spider mites are probably the bug that will do the most damage
to the marijuana plants. One of the reasons is that they are almost
microscopic and very hard to spot. They are called spider mites because
they leave a web-like substance clinging to the leaves. They also cause
tiny little spots to appear on the leaves. Probably the first thing
you'll notice, however, is that your plants look sick and depressed. The
mites suck enzymes from the leaves and as a result the leaves lose some
of their green colour and glossiness. Sometimes the leaves look like they
have some kid of fungus on them. The eggs are very tiny black dots. You
might be wise to get a magnifying glass so that you can really
scrutinize your plants closely. Be sure to examine the underside of the
leaves too. The mites will often be found clinging to the underside as
well as the top of the leaves. The sooner you start fighting the bugs,
the easier it will be to get rid of them. For killing spider mites on
marijuana, one of the best insecticides if "Fruit and Berry" spray made
by llers. Ortho also produces several insecticides that will kill mites.
The ingredients to look for are Kelthane and Malatheon. Both of these
poisons are lethal to humans and pets as well as bugs, but they both
detoxify in about ten days so you can safely smoke the grass ten days
after spraying. Fruit and Berry will only kill the adult mite, however,
and you'll have to spray every four days for about two weeks to be sure
that you have killed all the adults before they have had a chance to lay
eggs. Keep a close watch on your plants because it only takes one egg
laying adult to re- infest your plants and chances are that one or two
will escape your barrage of insecticides. If you see little bugs flying
around your plants, they are probably white flies. The adults are immune
to almost all the commercial insecticides except Fruit and Berry which
will not kill the eggs or larva. It is the larval stage of this insect
that does the most damage. They suck out enzymes too, and kill your
plants if they go unchecked. You will have to get on a spraying program
just as was explained in the spider mite section.
An organic method of bug control is using soap suds. Put Ivory flakes
in some lukewarm water and work up the suds into a lather. Then put the
suds over the plant. The obvious disadvantage is it you don't rinse the
soap off the plant you'll taste the soap when you smoke the leaves.
12. Pruning
We have found that pruning is not always necessary. The reason one
does it in the first place is to encourage secondary growth and to allow
light to reach the immature leaves. Some strands of grass just naturally
grow thick and bushy and if they are not clipped the sap moves in an
uninterrupted flow right to the top of the plant where it produces
flowers that are thick with resin. On the other hand, if your plants
appear tall and spindly for their age at three weeks, they probably
require a little trimming to ensure a nice full leafy plant. At three
weeks of age your plant should have at least two sets of branches or
four leaf clusters and a top. To prune the plant, simply slice the top
off just about the place where two branches oppose each other. Use a
razor blade in a straight cut. If you want to, you can root the top in
some water and when the roots appear, plant the top in moist soil and it
should grow into another plant. If you are going to root the top you
should cut the end again, this time with a diagonal cut so as to expose
more surface to the water or rooting solution. The advantage to taking
cuttings from your plant is that it produces more tops. The tops have
the resin, and that's the name of the game. Every time you cut off a
top, the plant seeds out two more top branches at the base of the
existing branches. Pruning also encourages the branches underneath to
grow faster than they normally would without the top having been cut.
13. Harvesting and Curing
Well, now that you've grown your marijuana, you will want to cur it
right so that it smokes clean and won't bite. You can avoid that
"homegrown" taste of chlorophyll that sometimes makes one's fillings
taste like they might be dissolving. We know of several methods of
curing the marijuana so that it will have a mild flavour and a mellow
rather than harsh smoke.
First, pull the plant up roots and all and hang it upside down for 24
hours. Then put each plant in a paper grocery bag with the top open for
three or four days or until the leaves feel dry to the touch. Now strip
the leaves off the stem and put them in a glass jar with a lid. Don't
pack the leaves in tightly, you want air to reach all the leaves. The
main danger in the curing process is mould. If the leaves are too damp
when you put them into the jar, they will mould and since the mould will
destroy the resins, mould will ruin your marijuana. you should check the
jars every day by smelling them and if you smell an acrid aroma, take
the weed out of the jar and spread it out on newspaper so that it can
dry quickly. Another method is to uproot the plants and hang them upside
down. You get some burlap bags damp and slip them up over the plants.
Keep the bags damp and leave them in the sun for at least a week. Now
put the plants in a paper bag for a few days until the weed is dry
enough to smoke. Like many fine things in life, marijuana mellows out
with age. The aging process tends to remove the chlorophyll taste.