agree!! I dug 2 clumps that were here when we moved in.I battled it in my other garden and had to dig half the clump every few years just so it wouldnt take over the visual balance I had achieved in my other garden.
I visit my old neighborhood from time to time and there it is all over the place. New owners arent gardeners I guess.
My old house 6 years ago the clump is under the dogwood.
