Another commonly seen name for this flower in the nursery trade is Blue (or white) Peach-leafed Bellflower. Campanula persicifolia is the botanical name.
Cheers! ~ Marilyn
Farm Girl No. 1100
Do not go where the path may lead, go instead where there is no path and leave a trail. - Ralph Waldo Emerson
I think that is what I have also. I loved them at first, but they are very hard to get rid of. They can take over an area. Now I pull out most of them.