A Beginner's Guide to Growing Autoflowering Cannabis Indoors

Growing cannabis indoors can be an exciting journey, especially for beginners eager to cultivate their own plants. Autoflowering cannabis varieties offer a convenient option for indoor growers in Canada, as they have a shorter life cycle and don't require strict light schedules like photoperiod strains. In this comprehensive guide, we'll walk you through the basics of growing autoflowering cannabis indoors, from seed to harvest.

Understanding Autoflowering Cannabis

1. Genetics: Autoflowering cannabis varieties contain genetics from Cannabis ruderalis, a subspecies known for its ability to flower based on age rather than light cycles.

2. Life Cycle: Autoflowering plants have a shorter life cycle compared to photoperiod strains, usually completing their entire growth cycle in 8-12 weeks from seed to harvest.

Setting Up Your Indoor Grow Space

1. Location: Choose a suitable location for your indoor grow space, such as a spare room, closet, or tent. Ensure the space has adequate ventilation, temperature control, and access to electricity.

2. Lighting: Select the appropriate lighting for your grow space. LED grow lights are a popular choice for indoor cannabis cultivation, as they provide full-spectrum light and are energy-efficient.

3. Ventilation: Install fans or an exhaust system to maintain proper air circulation and prevent humidity buildup. Adequate ventilation is crucial for preventing mold and mildew growth and promoting healthy plant development.

Germinating Autoflowering Seeds

1. Seed Selection: Choose high-quality autoflowering seeds from a reputable seed bank or breeder. Look for strains that suit your preferences in terms of potency, flavor, and effects.

2. Germination: Germinate your seeds using your preferred method, such as the paper towel method or directly planting them in seedling starter trays. Keep the germination environment warm (around 70-80°F) and maintain moisture levels to encourage seedling growth.

Growing Autoflowering Cannabis

1. Light Schedule: Autoflowering plants don't require a specific light schedule to initiate flowering. However, providing 18-20 hours of light per day during the vegetative stage can promote vigorous growth and maximize yields.

2. Nutrient Management: Start with a mild nutrient solution and gradually increase the strength as your plants mature. Pay attention to nutrient deficiencies or excesses and adjust your feeding regimen accordingly.

3. Training Techniques: While autoflowering plants have a fixed life cycle, you can still employ low-stress training (LST) techniques to maximize light exposure and encourage lateral growth. Avoid high-stress training methods like topping or pruning, as these can stress the plants and affect yields.

By following the tips outlined in this beginner's guide and sourcing high-quality cannabis seeds in Canada.

Harvesting Autoflowering Cannabis

1. Flowering Stage: Autoflowering plants will begin flowering automatically, usually around 2-4 weeks after germination. Monitor your plants closely during this stage for signs of bud development and maturation.

2. Harvest Timing: Most autoflowering strains will be ready for harvest within 8-12 weeks from germination. Monitor trichome development using a magnifying tool and harvest when the trichomes are milky white or amber in color for desired effects.


Growing autoflowering cannabis indoors is an excellent option for beginners in Canada. With their shorter life cycle and low-maintenance requirements, autoflowering strains offer a convenient and rewarding way to cultivate your own cannabis at home. By following the tips outlined in this beginner's guide and sourcing high-quality cannabis seeds in Canada, you can set up a successful indoor grow space and enjoy a bountiful harvest of high-quality autoflowering buds. Happy growing!