I've had sweet Laura for about 3 years. I have tried it both in sun and shade. It lives and blooms but not as heavily as I would like. I have had 3 others (zoned 7 and 8)for 2 years. They have survived the winters, but I have not gotten the blooms that others have. I have poorly drained heavy clay soil which I think is the problem.

They grow very well for many people I know. The places I have seen them grown most successfully are sunny and well-drained. One friend grows them on steep clay banks. They seem to bloom most of the summer....even in dry weather.