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 Botanic Garden >> Gardening >  >> Question and Answer >> Seeding and Propagation

Starting Canna Lilies from Seed: Nicking for Fast Germination

Seed Preparation

Nick the hard seed coat with a file or sander until the white inner layer shows. This reduces germination from months to 2 weeks.

Sowing and Care

  • Plant 1 inch deep in moist potting soil; keep at 75°F.
  • Provide strong light (shop light 8 inches above).
  • Feed half-strength fertilizer every 10 days after 3–4 inches tall.
  • Prick out at 5–6 inches; harden off 10 days; plant in full sun after frost.
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