I have always loved the old Tricyrtis formosana and 'Imperial Banner' seems to be a real winner. I note also that the 'Plant Finder' lists 14 suppliers of 'Raspberry Mousse' in the U.K., so clearly this problem is current in this part of the world as well.
I planted three 3" pots of Golden Leopard in a raised clay bed this past May. This bed receives partial sun and/or bright shade all day. I have them planted with brunnera, heuchera, astilbe, alchemilla and columbine . The only plants that seem to prosper are the heuchera and the alchemilla. The tricyrtis are still tiny and only one put out a few timid blooms. Perhaps it's too much light? Would love a grouping like I've seen in photos from other gardens. I moved one to see if it would be happier so time will tell. - Carol
Hi Carol - I'd give your toad lilies another year to develop. Mine really took off in their second season. If yours don't bloom well next fall, then you might consider moving them to a shadier spot.