Starting Japanese Peony (Paeonia) from Seed: Double Dormancy

Peony Seed Germination: Warm Then Cold

Peony seeds have a double dormancy (root first, then shoot).

1. Sow ½ inch deep in pots; keep warm (70°F) 3 months. Roots grow; no shoots.
2. Seal pots in plastic bags for humidity; no light.
3. Move to fridge (35–40°F) for 3 months.
4. Return to warmth; shoots emerge.

This mimics nature: summer root growth, winter chill, spring shoot. Patience yields unique new varieties.