Autoflowering cannabis strains are a type of cannabis that automatically begins the flowering process without the need for a change in the light cycle. This is in contrast to photoperiod strains, which require a shift from longer light periods (usually 18-24 hours) to shorter periods (12 hours) to trigger flowering.
The autoflowering trait comes from Cannabis ruderalis, a subspecies of cannabis that evolved in the harsh climates of northern regions like Russia and Siberia. These plants adapted to short growing seasons by flowering based on age rather than light exposure. Breeders have since crossed ruderalis with indica and sativa strains to create autoflowering varieties that retain the desirable traits of their parent strains, such as potency and flavor, while gaining the autoflowering capability.
Benefits of Growing Autoflowering Cannabis
Autoflowering cannabis strains offer several advantages that make them appealing to growers:
- Faster Growth Cycle: Autoflowers typically complete their entire life cycle in 8-12 weeks from seed to harvest, allowing for multiple harvests in a single growing season.
- No Light Cycle Management: Because they don’t rely on light cycles to flower, autoflowers are easier to grow, especially for beginners or those with limited time.
- Compact Size: Autoflowering plants are generally smaller and more compact, making them ideal for growers with limited space or those who want to maintain a discreet grow.
- Resilience: Autoflowers are often more resilient to pests, diseases, and environmental stressors, thanks to their ruderalis genetics.
- Versatility: Autoflowers can be grown indoors, outdoors, or in greenhouses, and they can thrive in various growing conditions.
Choosing the Right Autoflowering Strain
Selecting the right strain is the first step in a successful autoflowering grow. When choosing a strain, consider the following factors:
- Desired Effects: Determine whether you prefer the relaxing effects of indica-dominant strains, the uplifting effects of sativa-dominant strains, or a balanced hybrid.
- THC/CBD Levels: Different strains have varying levels of THC (the psychoactive compound) and CBD (a non-psychoactive compound with therapeutic benefits). Choose a strain that matches your desired potency and effects.
- Growing Conditions: Some strains are better suited to specific climates or growing conditions. If you’re growing outdoors in a cooler climate, look for strains that are hardy and can withstand lower temperatures.
- Yield Potential: While autoflowers tend to produce smaller yields compared to photoperiod strains, some varieties are known for being particularly productive. Consider your yield expectations when selecting a strain.
- Flavor and Aroma: Autoflowering strains come in a wide range of flavors and aromas, from fruity and sweet to earthy and skunky. Choose a strain that appeals to your taste preferences.
Preparing Your Grow Space
Before planting your autoflowering seeds, it’s essential to prepare your grow space to ensure optimal conditions for growth.
Indoor Growing Setup
- Grow Lights: While autoflowers don’t require a strict light cycle, providing 18-24 hours of light per day can maximize growth and yield. LED lights are a popular choice for indoor grows due to their efficiency and low heat output.
- Grow Tent: A grow tent helps contain light, maintain temperature and humidity, and keep pests out. Choose a tent size that fits your space and the number of plants you plan to grow.
- Ventilation: Proper airflow is crucial to prevent mold and maintain healthy plants. Install an exhaust fan to remove hot air and a circulating fan to ensure even air distribution.
- Pots: Autoflowers do best in pots that allow for good drainage. Fabric pots are a popular option as they promote air pruning of roots, leading to healthier root systems.
- Growing Medium: Autoflowers thrive in well-aerated, light soil mixes that retain moisture while allowing excess water to drain. A mix of soil, perlite, and coco coir works well.
Outdoor Growing Setup
- Location: Choose a location that receives plenty of sunlight throughout the day. Autoflowers benefit from as much direct sunlight as possible.
- Soil Preparation: If planting directly in the ground, prepare the soil by loosening it and adding organic matter such as compost or worm castings. Ensure the soil drains well to prevent waterlogging.
- Protection: Consider using protective measures such as fences or mesh to keep pests and animals away from your plants.
Germinating Autoflowering Seeds
The first step in growing autoflowering cannabis is germinating your seeds. Here’s how to do it:
- Soaking Method: Place your seeds in a glass of distilled water and let them soak for 12-24 hours. This helps soften the seed shell and encourages germination.
- Paper Towel Method: After soaking, transfer the seeds to a damp paper towel, fold it over the seeds, and place it inside a plastic bag or container. Keep the container in a warm, dark place.
- Planting: Once the seeds have sprouted and the taproot is visible, carefully plant them about ½ inch deep in your prepared growing medium. Cover the seed lightly with soil and water gently.
- Initial Care: Place your seedlings under light (indoors) or in a sunny location (outdoors) and maintain consistent moisture in the soil.
The Growing Stages of Autoflowering Cannabis
Autoflowering cannabis plants go through several distinct stages of growth, each with its own requirements.
1. Seedling Stage (1-2 weeks)
- Light: 18-24 hours of light per day.
- Watering: Keep the soil moist but not waterlogged. Seedlings are delicate and can easily be overwatered.
- Nutrients: Avoid feeding nutrients during the first week. After the first set of true leaves appear, you can start with a mild nutrient solution.
2. Vegetative Stage (2-4 weeks)
- Light: Continue with 18-24 hours of light per day.
- Watering: Water when the top inch of soil feels dry. Increase the amount of water as the plant grows.
- Nutrients: Start feeding with a balanced nutrient mix that’s high in nitrogen to support vegetative growth.
3. Flowering Stage (5-12 weeks)
- Light: Maintain 18-24 hours of light per day.
- Watering: Water deeply and allow the soil to dry slightly between waterings.
- Nutrients: Switch to a bloom nutrient formula that’s higher in phosphorus and potassium to support bud development.
- Training: While autoflowers don’t respond well to high-stress training techniques like topping, you can use low-stress training (LST) to gently bend and tie down branches, encouraging an even canopy and better light penetration.
Common Challenges and How to Overcome Them
Growing autoflowering cannabis is generally easier than growing photoperiod strains, but there are still challenges to be aware of:
- Nutrient Burn: Autoflowers are often more sensitive to nutrients than photoperiod strains. Start with a lower nutrient concentration and gradually increase it to avoid nutrient burn.
- Overwatering: Due to their smaller size, autoflowers can be easily overwatered, leading to root rot and other issues. Use the weight of the pot or a moisture meter to determine when to water.
- Pests: Outdoor autoflowers are susceptible to pests like aphids, spider mites, and caterpillars. Regularly inspect your plants and use organic pest control methods if needed.
- Temperature Stress: Autoflowers prefer stable temperatures between 70-85°F (20-29°C). Avoid exposing your plants to extreme heat or cold, which can stunt growth and reduce yields.
Harvesting and Curing Autoflowering Cannabis
Knowing when to harvest your autoflowering plants is crucial for maximizing potency and flavor.
1. Harvest Time
Trichome Color: Use a magnifying glass or jeweler’s loupe to inspect the trichomes (tiny resin glands) on the buds. When most trichomes are milky white with a few turning amber, it’s time to harvest.
Pistil Color: The pistils (hair-like structures) on the buds will change color from white to orange or brown as the plant matures. Harvest when most pistils have darkened and curled in.
2. Harvesting Process
- Cutting: Use clean, sharp scissors to cut the branches off the plant.
- Trimming: Trim away the large fan leaves and any remaining sugar leaves (small leaves sticking out of the buds).
- Drying: Hang the branches upside down in a dark, cool, and well-ventilated space. Drying should take 7-10 days, depending on the humidity.
3. Curing Process
- Curing Jars: Once the buds are dry, place them in airtight glass jars, filling them about ¾ full.
- Burping: For the first two weeks, open the jars daily for 15-30 minutes to release excess moisture and allow fresh air in.
- Storage: After two weeks, you can reduce burping to once every few days. Continue curing for at least 4 weeks to enhance flavor and potency.
Final Tips for Success
- Start with Quality Seeds: The success of your grow largely depends on the quality of the seeds you start with. Purchase seeds from reputable breeders or seed banks.
- Be Patient: Autoflowers grow quickly, but rushing the process can lead to subpar results. Give your plants the time they need to develop fully.
- Keep Learning: Every grow is an opportunity to learn. Keep track of your progress, take notes, and don’t be afraid to experiment with different techniques and strains.
Read Also : What Are Autoflower Cannabis Seeds?
Conclusion
Growing autoflowering cannabis is a rewarding experience that offers many benefits, especially for those looking for a quicker and more manageable cultivation process. By understanding the specific needs of autoflowering strains and following the tips outlined in this guide, you can achieve a successful harvest and enjoy the fruits of your labor in no time. Whether you’re a novice or a seasoned grower, autoflowers provide an excellent opportunity to hone your skills and explore the diverse world of cannabis cultivation. Happy growing!