Growing Japanese Iris from Seed: What to Expect

Hybrid Variability

Seeds from hybrid iris will not produce identical plants. Expect wide variation; many seedlings may be inferior, but some can be acceptable.

Planting Methods

1. Outdoor: Sow in a clean nursery bed in fall for natural vernalization. Seedlings emerge in spring; keep weeded (look like grass).
2. Refrigerator: Stratify seeds in damp paper towel in sealed bag in fridge until January. Then sow 1/2 inch deep in pots under lights. Transplant seedlings individually.

Timeline

Blooms in 2-3 years. Discard unwanted plants.