I have never gotten it on my peonies but always on my Siberian pea bushes, geraniums (the large blue kind), and the delphs. Pretty unsightly and the Siberian Peas also are afflicted with something that eats the leaves down to sticks similar to the worms that do it to the columbine. But unlike the columbine which I cut to the ground and then come back sans worms, I have lost an entire 10' section of my hedge of SP.
