Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible

pockets) water as needed
Cultivate soil surface
Check pH
Rotate (turn) plants
Check for spider mites under leaves
Check for fungi
Check for nutrient deficiencies
Regular fertilization schedule
Check HID system for excessive heat at plug-in, timer, ballast, and near ceiling
Cleanup!
Cleanup!
Check walls and ceiling for mold
Move lamp up, 12-36 inches above plants
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    Large chunks of time will be spent setting up the grow room and harvesting. These are not included in the 10-20 minute daily schedule.
Calendar
    The calendar starts on January 1st and is only three months long. Two weeks for clones to stick (root), two weeks of vegetative growth, and eight weeks of flowering. This indoor calendar can be started any day of the year, no matter which direction the wind is blowing or what the weatherman says.
    If the garden is full of clones grown with CO 2 enrichment or hydroponically, the calendar could move up one week, depending on how fast the garden grows. Remember, light intensity substantially diminishes over four feet away from the bulb.

Examine your plants carefully under a magnifying eyepiece to see if they are ready for harvest.
First Month
January 1st, First Week
    Take clones and root clones. They root in 1-4 weeks.
    Sow seeds. Make sure they are warm for speedy germination.
    Mix dolomite lime into soil before planting.
    Prepare grow room. Read “Setting up the Grow Room” and “Setting up the Lamp.”
    Set timer for 18-hour days and 6-hour nights.
January 15th, Third Week
    Make sure the vegetative room is perfect before bringing in the clones.
    Move in rooted clones or sprouted seedlings, place 24-36 inches under HID. Keep soil surface moist.
    Fertilize seedlings and clones. Use an ALL PURPOSE fertilizer. Start regular fertilization schedule.
    Special care should be given to soil. Moisture damping-off and dry soil pockets could stunt plants now!
Second Month

Take cuttings from strong mother plants.
February 1st, Fifth Week
    Vegetative plants should be 6-12 inches tall with broad, firm, green leaves.

Grow rooted cuttings under metal halide light.

When vegetative plants are big enough, induce flowering.
    Continue regular supplemental fertilization program.
    Move HID 12-36 inches above month-old seedlings and clones.
    Thin and transplant seedlings into larger pots.
    Irrigate as needed.
February 15th, Seventh Week
    Move vegetative clones into 12-hour flowering room.
    Change to super-bloom fertilizer.
    Plants should be 12-24 inches tall.
    No leaves should be yellowing. If they are, fine-tune the weekly checklist.
    Over-watering is sometimes a problem now. Check the soil with a moisture meter.
    Increased air circulation and ventilation are essential.
    Mist the garden with water to wash leaves.
    Iron, magnesium, and nitrogen deficiencies could show up now.
    Supplemental trace element mix should be applied.
Third Month March 1st, Ninth Week
    The plants are two months old and 18-36 inches tall.
    Females should dawn white, hair-like pistils.

Watch out for diseases and pests.

Plants need plenty of light to flower well.

Continue to water and fertilize your garden.
    Male pollen sacks develop. Remove or save males for breeding.
    Take clones for the next crop.
    If there are any leaves yellowing and dying, fine-tune the weekly check list.
    Air circulation, ventilation, and relative humidity are very important now!
    Leach soil to wash away any excess fertilizer salt residues.
    Seedlings only two-months old should be given another month of growth before flowering is induced.
    Cloning for sex may now be practiced.
    Soil will dry out rapidly now; watch for dry soil pockets.
    Bend and tie plants over to give garden an even profile.
    Prune plants that are shadowing other plants (optional).
    Heavily planted rooms should be ready for a second lamp. Add another lamp to increase harvest.
    This is the time of peak THC production. During the next one to four weeks, the tops will double in size and potency!
    Lower leaves may yellow. If many leaves are yellowing, fine-tune the checklist.
    After fine-tuning checklist, remove yellowing leaves only if they are clearly going to die.
    Garden might still be using quite a bit of water; make sure to check it daily if needed.

Females show white, fuzzy pistils when they flower.

Plants grow tall as they reach for the light.
    This is the last chance for spraying and fertilizing, if you plan to harvest within two weeks. If there are any nutrient, fungi, or insect disorders, this is the