Germination Guide

Master cannabis seed germination with proven techniques for maximum success rates and healthy seedling development.

Written by Phil — Founder of Phenoforged• Published 10/3/2025• Updated 10/3/2025

Pre-Germination Preparation

  • Use quality cannabis seeds from reputable sources.
  • Ensure seeds are mature (dark brown/gray color with tiger stripes).
  • Store seeds properly before germination (cool, dry, dark place).

Paper Towel Method

  • Place seeds between damp (not soaking) paper towels.
  • Put paper towels in a plastic bag or between two plates.
  • Keep in a warm, dark place (70-85°F optimal).
  • Check daily and keep towels moist but not waterlogged.
  • Tap root should appear in 1-7 days.

Direct Soil Method

  • Plant seeds 0.5-1 inch deep in quality seed starting mix.
  • Keep soil consistently moist but not saturated.
  • Maintain temperature around 70-80°F.
  • Provide gentle humidity dome if needed.
  • Seedlings emerge in 3-10 days typically.

Water Glass Method

  • Place seeds in glass of room temperature water.
  • Seeds should sink within 24 hours (viable seeds).
  • After 12-24 hours, transfer to paper towel method.
  • Good for testing seed viability before main germination.

Seedling Care

  • Provide gentle light (18-24 inches from seedlings).
  • Keep humidity around 65-70% for first week.
  • Water gently to avoid disturbing delicate roots.
  • Transplant when first true leaves appear.

Phil's Germination Tips

  • Scarify old or hard seeds gently with sandpaper.
  • Use distilled or RO water to avoid chlorine damage.
  • Maintain consistent temperature - fluctuations slow germination.
  • Don't disturb seeds too often during germination process.

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