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⏱️ How Long Does It Take to Grow Autoflower Seeds?Updated 2 days ago

Autoflowering cannabis seeds are known for their speed — perfect for growers who want a quick harvest without the hassle of changing light cycles 🌞🌒

Here’s what to expect when it comes to the growing timeline for autoflowers ⤵️


🗓️ Average Autoflower Grow Time

Most autoflowers go from seed to harvest in 8 to 12 weeks — much faster than photoperiod strains!

Here’s a rough breakdown:

StageTimeline
Germination1–5 days
Seedling1–2 weeks
Vegetative phase2–3 weeks
Flowering phase5–7 weeks
Total time8–12 weeks

🌿 Factors That Affect Autoflower Timing

While autos are designed to be quick, a few things can make them take a little longer — or finish faster:

  • Strain selection (some take 10+ weeks, others finish in 7)

  • Light quality and hours — 18–20 hours of light per day is ideal 💡

  • Environment — temperature, humidity, and airflow all matter 🌡️

  • Pot size — start in your final pot to avoid transplant shock 🪴

  • Stress — overwatering, poor pH, or nutrient issues can slow them down 🚫


💡 Bonus Tip: Don't Wait for Perfect Amber Trichomes

Because autos often flower so fast, waiting too long to harvest can lead to degradation in potency. Keep a close eye on trichomes during weeks 8–10 — many autos are ready when they're mostly cloudy with just a hint of amber 🔬


Need help picking the right strain or timing your grow? 👉 Contact us here

🌱



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