Growing Daylilies from Seed: Cold Stratification and Outdoor Sowing

Daylily (Hemerocallis) Seed Propagation in Illinois

Indoor Start (Best Germination)

1. Stratify seeds in damp paper towel in fridge January–March (60–90 days).
2. Sow ¼–½ inch deep in potting soil at 70–75°F.
3. Germinate in 2 weeks; grass-like seedlings.
4. Transplant to cells; grow under lights.

Direct Outdoor Sowing (Simpler)

1. Prepare a weed-free nursery bed in late fall.
2. Sow ½ inch deep; let winter stratify naturally.
3. Seedlings emerge in spring.

Astilbe Color Issue

Astilbe should be pink, lavender, purple, or red. Green blooms suggest deep shade; move to partial shade with afternoon sun for color.