Whether you're just starting out with pot production or looking to improve your existing crop, following this complete guide will help you produce big, high-quality yields right at home. With the right gear, techniques, and care, cultivating pot indoors can be an extremely productive and cost-effective endeavor.
Choosing Marijuana Strains
The first step in planning your indoor crop is picking the right weed strains to cultivate. The three main types of pot plants each have their own qualities.
Energizing strains
Known for their invigorating cerebral effects, sativas spread tall and slender with narrow leaves. They flourish in hotter equatorial climates and have a longer flowering time between 2.5-3 months indoors. Top energizing strains include Jack Herer, Durban Poison, Super Lemon Haze, and Jack Herer.
Indicas
Indicas provide relaxing body-focused effects and spread short and bushy with broad leaves. Adapted to cooler mountain climates, they flower faster within 8-9 weeks. Popular relaxing varieties include Northern Lights, Bubba Kush, and Bubba Kush.
Hybrids
Hybrid varieties blend traits from both sativas and indicas. They offer blended effects and have moderate flowering times around 2.25-2.5 months. Well-known hybrids are Blue Dream, OG Kush, and Blue Dream.
Setting Up Your Grow Space
Pot plants need the right controlled environment to thrive. Key factors for indoor grows are lights, airflow, layout, and finding the ideal discreet area.
Location
Choose an unused space with direct access to water and power outlets. An empty spare room, large closet, corner of the basement, or grow tent securely placed in a garage all make great hidden cultivation room spots.
Lighting
Pot requires powerful light for all growth stages. LEDs are energy-efficient and come in full spectrum options simulating real sunlight. Provide 15-25 watts per sq. ft for the vegetative stage and 400-600 watts per sq. ft. for flowering.
Airflow
Proper airflow and exhaust systems maintain ideal temp, humidity, and pure CO2 levels. Set up silent 10-15 cm fans or scrubbers to circulate stale air and eliminate odors.
Layout
Optimize your space by positioning plants strategically under the lamps and allowing room to access and work around them. Set up distinct zones for growth, flowering, curing, and cloning.
Cultivation Substrates
Cannabis can be grown in different substrates, each with benefits and cons. Pick a appropriate option for your specific setup and growing style.
Soil
The classic substrate, soil is inexpensive and easy for beginners. It provides excellent taste but needs more watering and fertilizing to nourish plants. Amend soil with perlite or coir to enhance aeration.
Coconut coir
Made from coir, renewable coco coir retains water but still allows air to the roots. It's cleaner and more consistent than soil. Use coir-specific fertilizers to prevent calcium buildup.
Hydroponics
In hydro systems, plant roots develop right in fertilizer irrigation solution. This enables quick development but needs close observation of solution properties. DWC and drip systems are common techniques.
Sprouting Seeds
Sprouting prepares your pot seeds to begin sprouting taproots. This prepares them for planting into their cultivation medium.
Towel Method
Put seeds between wet paper towel and maintain them damp. Inspect after a week for growing radicles showing sprouting is complete.
Planting directly
Plant seeds directly into pre-moistened growing medium 1⁄4 inch deep. Gently water and wait 1-2 weeks until sprouts push through the surface.
Rockwool Cubes
Soak cubic rockwool starters in pH-adjusted water. Place seeds 1⁄4 inch deep into the cubes. Keep cubes wet until sprouts appear within a week to 2 weeks.
Repotting Seedlings
Once sprouted, weed seedlings need to be transplanted to prevent crowding. Move them into proper sized containers.
Preparing Containers
Fill final pots with cultivation medium enriched with time-released nutrients. Allow Learn More pots to soak up water for 8-12 hours before repotting.
Gently repotting
Carefully separate seedling roots from germination medium using a spade. Put into pre-soaked container at same depth as before and gently water in.
Growth Stage
The vegetative stage promotes foliage and plant form through 18-24 hours of daily lighting intensity. This stage usually lasts 4-8 weeks.
Providing 3/4 to full day of Lighting
Use grow lights on a 24 hour schedule or outdoor light to trigger constant photosynthesis. Light output influences size and internodal spacing.
Nutrients
Use grow stage nutrients higher in N. Make sure pH stays around 6.5 for proper fertilizer uptake. Fertilize 1⁄4 to 1⁄2 strength after 14 days and strengthen gradually.
Training Techniques
Fimming, LST, and scrogging direct shoot patterns for even canopies. This boosts yields.
Bloom Stage
The flowering stage grows buds as plants show their sex under a 12 hour light timing. It lasts 8-12 weeks depending on variety.
Changing Light Schedule
Change grow lights to 12/12 or move outside for natural 12 hour cycle. This signals plants to start blooming.
Stop Fertilizing
Leaching removes fertilizer residuals to improve taste. Feed weakly the first period then just use plain water the last 2 weeks.
Flushing
Continue 12 hour photoperiod but flush using pH-balanced water only. Return to plain watering if buds aren't yet mature after two weeks.
Harvesting
Recognizing when cannabis is completely mature ensures maximum potency and aroma. Harvest plants at optimal ripeness.
Identifying Ripeness
Check swollen calyxes, faded pistils, and 10-15% cloudy trichs. Check buds across the plant as they won't all ripen evenly.
Cutting Plants
Use sterilized, razor-sharp pruning shears to gently slice each plant at the base. Leave 5-10cm of stem attached.
Drying
Suspend intact plants or branches inverted in a lightless room with average temp and RH around 50-60% for 7-14 days.
Aging
Aging continues desiccating while improving the buds like fine wine. This process mellows bitterness and further develops cannabinoid contents.
Jars and Humidity
Trim cured buds from branches and place into glass jars, packing about 75% capacity. Use a sensor to measure container humidity.
Burping Daily
Open containers for a short time daily to slowly reduce moisture. Remoisten buds if RH goes under 55%.
Final Cure
After 2-3 weeks when humidity levels off around 55-60%, perform a final trim and keep forever in sealed jars.
Common Problems and Solutions
Even experienced cultivators run into different pot plant problems. Identify issues early and fix them correctly to keep a vibrant garden.
Nutrient Deficiencies
Yellowing leaves often signify insufficient nitrogen. Purpling stems and leaves show phosphorus deficiency. Test pH and boost fertilizers slowly.
Bugs
Spider mites, fungus gnats, thrips, and root aphids are common marijuana pests. Use organic sprays, predator bugs, and yellow traps for organic control.
Mold
High humidity encourages powdery mildew and bud rot. Improve airflow and venting while reducing RH under 50% during bloom.
Summary
With this complete indoor pot growing guide, you now have the info to grow plentiful potent buds for personal harvests. Follow these techniques and methods during the seed starting, vegetative, and flowering stages. Spend in good gear and carefully monitor your plants. In time, you'll be compensated with sticky fragrant buds you grew yourself under the loving care of your green thumbs. Good luck cultivating!