Woodland garden ornamental. Blooms late May to mid-June in the North Country. Seed requires dormant period, usually taking 2 years to germinate in the wild. Seedling growth good in both sun and shade. While survival is better in the shade, seedlings in the sun are slightly larger and have more biomass allocated to roots.
Seedlings begin to bloom in their third year.
Difficult from seed. Stratification and a moist seeding mixture are necessary for germination. Reported results mixed. Stratify warm 4 weeks, cold 6 weeks. Plant without bottom heat.