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Outdoor grow calendar (Northern Hemisphere)

Month-by-month checklist for a clean outdoor season.

1 min read2026-05-2612 views1 readers finished
  1. 1
    March–April
    Germinate indoors under lights. Prepare outdoor soil with amendments. Set up pest fence.
  2. 2
    May
    Harden seedlings outdoors (1 hour → 4 → all day). Transplant into ground or final pots after last frost.
  3. 3
    June–July
    Vegetative explosion. Heavy feed, defoliate, top for structure. Photoperiods only — autos finish faster.
  4. 4
    August
    Plants start showing pre-flowers. Lock in your pest protocol. Start watching for powdery mildew.
  5. 5
    September
    Peak flower. Daily checks for bud rot. Trichomes start to cloud up.
  6. 6
    October
    Harvest window opens. Watch weather — cold rainy days drive rot. Chop, dry, cure.
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