I have some of these in my backyard, and there is a large area at the Kentucky Garden Club Headquarters, in Paris, Ky.. They rarely bloom. They are planted under a large Ginko tree in the arburetum and never bloom there.

Ocassionally I will get a few to bloom up close to the foundation of my house, but never more than a dozen or so. Most of them are planted under my smaller Ginko by the previous owner, but they never bloom there. I have tried adding limestone to the area to encourage the bloom, but nothing helped. Jefferson grew these at Monticello, but we are sure struggling here just to keep them alive. We do not mow the area till the bloom time passes, but to no avail. Any answers out there in GardenWeb Land? Has anyone gotten them to grow at home?

Marge