Most autoflower strains complete their full lifecycle in 8 to 10 weeks from germination. Fast-finishing varieties like Quick One can be ready in as little as 7 weeks, while larger autoflowers may take up to 12 weeks.

• Fast autos — 7-8 weeks (smaller yields, 30-60g per plant)
• Standard autos — 9-10 weeks (balanced yield and potency)
• XL autos — 11-12 weeks (larger plants, 100-150g per plant)

Cloning autoflowers is not recommended. Since autoflowers flower based on age, clones inherit the mother plant's internal clock and begin flowering immediately, resulting in tiny plants with minimal yield. Instead, grow autoflowers from seed each cycle.

• Clones — Start flowering immediately, very small harvest
• Seeds — Full vegetative phase, maximum yield potential

Autoflowers perform well under 18/6 or 20/4 light schedules throughout their entire lifecycle. Some growers run 24 hours of light, though most experts recommend at least 4 hours of darkness for plant recovery.

• 18/6 — Good balance of growth and energy savings
• 20/4 — Maximum growth with recovery period
• 24/0 — Fastest growth but higher electricity costs and no rest period

Modern autoflower genetics have largely closed the potency gap. Many autoflower strains now reach 20-25% THC, comparable to their photoperiod counterparts. Advances in breeding have combined ruderalis flowering traits with high-potency genetics from strains like Gorilla Glue and Girl Scout Cookies.

Maximizing autoflower yields comes down to starting strong and avoiding transplant stress. Plant directly into final containers, use light and airy soil, and begin LST (low stress training) early in week 3 to open the canopy before flowering locks in plant structure.

• Container size — Use 11-15 liter fabric pots for the best root aeration and growth
• Light schedule — Run 20/4 for maximum photosynthesis with a recovery period
• Nutrients — Start at quarter strength and increase gradually; autoflowers are sensitive to overfeeding
• Avoid topping late — Top only before day 21; late topping stunts autos since they cannot recover in veg

For even bigger harvests, explore high yield seeds or pair autoflowers with an indoor growing setup for year-round harvests.