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Growing Hostas from Seed: Step-by-Step

Sowing

Use the same setup as tomatoes: sterile seed-starting mix, lights, 70°F. Surface-sow seeds, barely cover with mix, then add a thin layer of milled sphagnum moss to prevent damping off.

Germination & Early Care

  • Germination in 2–4 weeks; may continue sporadically.
  • Keep moist but not soggy.
  • Provide strong light (shop light 4–6 inches above seedlings).

Transplanting

When true leaves appear, pot up individually. Harden off after last frost, then plant in shade garden.

Note on Hybrids

Most hostas are hybrids; seedlings won’t resemble parents. But you may discover unique variations.

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