Whether you're new to weed cultivation or looking to improve your existing grow, following this complete guide will help you produce bountiful, high-quality yields right at home. With the right supplies, methods, and care, growing cannabis indoors can be an extremely productive and cost-effective endeavor.
Choosing Pot Varieties
The first step in planning your indoor crop is picking the right cannabis cultivars to grow. The three main types of weed plants each have their own characteristics.
Sativas
Known for their uplifting intellectual effects, sativas grow tall and slender with narrow leaves. They flourish in warmer tropical climates and have a longer blooming time between 10-12 weeks indoors. Top sativa varieties include Jack Herer, Durban Poison, Super Lemon Haze, and Jack Herer.
Indicas
Indicas provide calming body-focused effects and grow short and bushy with wide leaves. Accustomed to cooler mountain climates, they bloom faster within 8-9 weeks. Popular relaxing strains include Granddaddy Purple, Northern Lights, and Bubba Kush.
Mixed strains
Mixed varieties blend traits from both energizing strains and relaxing strains. They offer combined effects and have medium flowering periods around 2.25-2.5 months. Well-known hybrids are Blue Dream, OG Kush, and Blue Dream.
Setting Up Your Grow Space
Marijuana plants need the right controlled environment to flourish. Key factors for indoor cultivations are lighting, airflow, layout, and finding the ideal discreet location.
Location
Choose an empty space with direct access to irrigation and electrical outlets. An empty extra bedroom, unused closet, basement corner, or cultivation tent locked away in a garage all make great hidden cultivation room spots.
Lighting
Pot requires intense light for all vegetative stages. LED grow lights are energy-efficient and come in broad spectrum options mimicking real sunlight. Cover 250-400 watts per square foot for the growth stage and 400-600 watts per square foot for bloom.
Ventilation
Proper ventilation and exhaust systems keep ideal temperature, moisture, and fresh CO2 levels. Install low-noise 4-6 inch fans or scrubbers to refresh stale air and reduce odors.
Layout
Maximize your space by positioning plants carefully under the lights and allowing room to reach and work around them. Set up separate zones for vegetation, bloom, drying, and propagation.
Growing Mediums
Marijuana can be cultivated in various substrates, each with pros and cons. Pick a suitable option for your specific setup and growing style.
Soil
The classic substrate, soil is cheap and simple for new growers. It provides excellent taste but needs more watering and fertilizing to nourish plants. Amend soil with perlite or coir to enhance drainage.
Coco Coir
Made from coconut husks, reusable coco coir retains water but still lets in air to the roots. It's more sterile and more consistent than soil. Use coir-specific fertilizers to prevent accumulation.
Water systems
In water systems, plant roots develop directly in nutrient water solution. This allows rapid growth but needs close monitoring of water chemistry. Deep water culture and drip systems are common techniques.
Germinating Seeds
Germination activates your marijuana seeds to start sprouting taproots. This prepares them for planting into their growing medium.
Paper Towel Method
Place seeds between damp paper towels and keep them moist. Check after 2-7 days for growing radicles showing sprouting is complete.
Direct Planting
Plant seeds right into wetted cultivation medium 6mm deep. Gently water and wait 7-14 days until seedlings break through the surface.
Rockwool Cubes
Presoak rockwool cubes in balanced water. Place seeds 6mm deep into the cubes. Keep cubes wet until sprouts emerge within 1-14 days.
Transplanting Seedlings
Once germinated, pot young plants need to be repotted to avoid overcrowding. Move them into appropriately sized containers.
Preparing Containers
Load large containers with growing medium amended with slow-release fertilizer. Let pots to soak up water overnight before transplanting.
Carefully Transplanting
Carefully loosen seedling roots from germination medium using a spoon. Put into pre-soaked pot at same depth as before and lightly water in.
Growth Stage
The growth stage promotes foliage and plant structure through 18-24 hours of continual lighting exposure. This stage usually lasts 4-8 weeks.
Providing 3/4 to full day of Lighting
Use grow lights on a 24 daily schedule or outdoor light to trigger constant growth. Lamp intensity influences height and node distance.
Fertilizing
Use vegetative stage fertilizers richer in nitrogen. Make sure pH remains around 5.8-6.3 for proper nutrient absorption. Fertilize 25-50% strength after 2 weeks and strengthen gradually.
Training Techniques
Fimming, low stress training, and scrogging direct shoot patterns for flat canopies. This increases yields.
Bloom Stage
The flowering stage grows buds as plants show their sex under a 12 hour cycle schedule. It lasts 2-3 months depending on variety.
Changing Light Schedule
Change grow lights to 12 hours on, 12 hours off or place outdoors for outdoor 12 hour cycle. This signals plants to begin flowering.
Flushing
Flushing flushes out nutrient salts to improve flavor. Fertilize lightly the first weeks then just use pH'd water the last 2 weeks.
Flushing
Continue 12 hour photoperiod but flush using neutral pH water only. Resume clean watering if buds aren't yet mature after two weeks.
Reaping
Knowing when marijuana is fully ripe ensures peak cannabinoid content and aroma. Cut down plants at peak ripeness.
Identifying Ripeness
Look for fading pistils, swelling calyxes, and 10-15% cloudy trichs. Check buds around the plant as they won't all ripen evenly.
Harvesting plants
Use sterilized, razor-sharp pruning shears to gently cut each plant at the base. Leave 5-10cm of stem attached.
Drying
Suspend whole plants or branches inverted in a dark room with average temp and RH around 50-60% for 1-2 weeks.
Aging
Curing continues desiccating while aging the buds like aged spirits. This technique smooths harshness and intensifies cannabinoid contents.
Curing containers
Trim dried buds from branches Contact Us Today and store into glass jars, filling about 75% capacity. Use a sensor to measure jar moisture.
Opening jars daily
Unseal jars for a few hours each day to gradually lower humidity. Rehydrate buds if RH goes under 55%.
Final Cure
After 2-3 weeks when moisture levels off around 55-60%, perform a last manicure and keep long-term in sealed jars.
Troubleshooting
Even seasoned cultivators run into various weed plant problems. Identify problems soon and fix them properly to maintain a strong garden.
Poor feeding
Chlorosis often signify inadequate nitrogen. Purpling stems and leaves show phosphorus deficiency. Check 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 natural control.
Mold
High humidity promotes botrytis and root rot. Increase circulation and venting while reducing RH under 50% during bloom.
Conclusion
With this complete indoor cannabis growing guide, you now have the info to cultivate bountiful potent buds for personal harvests. Apply 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 rewarded with sticky fragrant buds you raised yourself under the loving care of your green thumbs. Good luck cultivating!