Ah, thank yo for the reccies on varieties, that might be helpful. The blight that mine get will kill them if after they bloom (or they're too weak to bloom at all) I let it run down the stems too far, meaning I don't don't cut it off promptly when I see the first few leaves scorching and blackening. I've used Daconil in years past to help with that, but haven't been taking care of things that well in the last couple of years.