Weed Grow Tutorial

Whether you're just starting out with cannabis cultivation or looking to improve your existing crop, following this complete guide will help you produce bountiful, high-quality yields right at home. With the right supplies, techniques, and care, cultivating marijuana indoors can be an extremely productive and cost-effective endeavor.

Choosing Cannabis Strains

The first step in planning your indoor crop is selecting the right pot cultivars to cultivate. The three main types of cannabis plants each have their own traits.


Known for their uplifting mental effects, these strains grow tall and slender with narrow leaves. They thrive in warmer equatorial climates and have a longer flowering time between 10-12 weeks indoors. Top sativa strains include Jack Herer, Durban Poison, Super Lemon Haze, and Jack Herer.

Relaxing strains

These strains provide relaxing full-body effects and grow short and bushy with broad leaves. Adapted to cooler mountain climates, they flower faster within 8-9 weeks. Popular indica strains include Granddaddy Purple, Northern Lights, and Bubba Kush.


Hybrid strains blend traits from both sativas and indicas. They offer combined effects and have moderate flowering periods around 9-10 weeks. Well-known hybrids are OG Kush, Girl Scout Cookies, and Blue Dream.

Setting Up Your Cultivation Space

Marijuana plants need the right controlled environment to thrive. Key factors for indoor farms are lighting, airflow, layout, and finding the ideal discreet area.


Choose an empty space with quick access to water and power outlets. An empty extra bedroom, unused closet, corner of the basement, or cultivation tent tucked away in a garage all make great hidden grow room spots.


Marijuana requires strong light for all growth stages. LEDs are energy-efficient and come in full spectrum options replicating real sunlight. Cover 250-400 watts per square foot for the vegetative stage and 400-600 watts per sq. ft. for flowering.


Proper ventilation and exhaust systems maintain ideal temp, moisture, and fresh CO2 levels. Set up silent 4-6 inch blowers or scrubbers to refresh old air and eliminate odors.


Optimize your space by arranging plants carefully under the lamps and leaving room to reach and work around them. Set up separate zones for vegetation, bloom, drying, and propagation.

Growing Substrates

Cannabis can be cultivated in different mediums, each with benefits and cons. Pick a proper option for your particular setup and growing style.


The traditional substrate, soil is affordable and simple for new growers. It provides great taste but requires more watering and nutrients to nourish plants. Enrich soil with perlite or coco to enhance drainage.

Coconut coir

Made from coir, reusable coconut fiber retains water but still allows air to the roots. It's more sterile and more predictable than soil. Use coir-specific nutrients to prevent accumulation.


In water systems, Learn More plant roots grow right in fertilizer water solution. This enables quick growth but needs careful observation of water properties. DWC and drip systems are common methods.

Germinating Seeds

Germination prepares your pot seeds to start growing taproots. This readies them for transplanting into their growing medium.

Paper Towel Method

Put seeds between wet paper towels and maintain them damp. Check after 2-7 days for growing radicles indicating germination is complete.

Planting directly

Insert seeds directly into pre-moistened cultivation medium 6mm deep. Gently water and wait 1-2 weeks until seedlings break through the surface.

Rockwool Cubes

Soak cubic rockwool starters in balanced water. Insert seeds 6mm deep into the cubes. Keep cubes wet until seedlings emerge within 1-14 days.

Repotting Young plants

Once sprouted, weed seedlings need to be repotted to prevent overcrowding. Move them into appropriately sized containers.

Ready Containers

Load large pots with cultivation medium enriched with time-released nutrients. Allow containers to absorb water for 8-12 hours before repotting.

Gently repotting

Gently separate seedling roots from germination medium using a spade. Put into pre-soaked pot at same depth as before and lightly water in.

Vegetative Stage

The vegetative stage encourages foliage and plant form through 18-24 hours of continual lighting intensity. This stage usually lasts 1-2 months.

Using 3/4 to full day of Light

Use grow lights on a 24 hour cycle or natural sunlight to trigger constant growth. Lamp output influences height and node distance.


Use grow stage fertilizers richer in N. Make sure pH stays around 6.5 for proper nutrient absorption. Feed 25-50% concentration after 14 days and strengthen slowly.

LST and topping

Fimming, LST, and trellising direct shoot shapes for flat foliage. This boosts yields.

Bloom Stage

The flowering stage develops buds as plants reveal their sex under a 12 Contact Us Today hour cycle schedule. It lasts 8-12 weeks depending on strain.

Switching to 12/12

Change grow lights to 12 hours on, 12 hours off or move outside for outdoor 12/12 timing. This signals plants to start blooming.


Flushing removes fertilizer residuals to enhance taste. Fertilize lightly the first period then just use plain water the final 2 weeks.


Maintain 12 hour photoperiod but flush using neutral pH water only. Return to plain watering if buds aren't yet mature after two weeks.


Recognizing when marijuana is fully ripe delivers peak cannabinoid content and aroma. Harvest plants at optimal maturity.

Identifying Ripeness

Check fading pistils, swelling calyxes, and 10-15% cloudy trichs. Inspect buds across the plant as they won't all mature evenly.

Cutting Plants

Use clean, sharp trimming scissors to carefully cut each plant at the base. Keep several inches of stem attached.


Suspend whole plants or colas inverted in a dark room Discover More with moderate temperature and RH around 45-65% for 7-14 days.


Curing continues desiccating while aging the buds like aged spirits. This process smooths bitterness and further develops terpene and terpene profiles.

Jars and Humidity

Manicure dried buds from branches and place into sealed containers, packing about 3⁄4 full. Use a sensor to measure jar moisture.

Burping Daily

Open containers for a few hours each day to slowly reduce humidity. Rehydrate buds if humidity goes under 55%.

Final Cure

After 14-21 days when humidity stabilizes around 55-60%, perform a last trim and keep long-term in airtight jars.

Common Problems and Solutions

Even seasoned growers run into different cannabis plant problems. Detect issues soon and fix them correctly to maintain a vibrant garden.

Nutrient Deficiencies

Chlorosis often indicate inadequate nitrogen. Purpling stems and leaves signal phosphorus deficiency. Test pH and increase fertilizers gradually.


Spider mites, fungus gnats, mites, and root aphids are common pot pests. Use neem oil sprays, predator bugs, and sticky traps for organic control.


High moisture encourages botrytis and bud rot. Increase circulation and venting while lowering humidity under 50% during flowering.


With this complete indoor weed growing guide, you now have the info to cultivate plentiful potent buds for private grows. Apply these steps and techniques throughout the germination, growth, and flowering stages. Invest 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. Happy growing

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