Thanks guys! That looks exactly like what it is. I also have maltese cross (lychnis chalcedonica) and it doesn't look like that at all - wouldn't have guessed the same family but definitely looks like lycnis coronaria and I new it also came in white although I don't have the white variety. Have plenty of seeds of the pink if anyone is interested.
There's also a variety called "Angel Blush" that's white with a soft-pink center. I have the rose one and have been trying for years to get some of the white and the blush growing with them, to no avail. Burbee's Seed was offering a mix they called Diamonds and Rubies that had white and TWO shades of the rose-pink!
Great to know. I received some rose campion in a trade with Sdoglover and didn't know any thing about it. Hope it makes it through this Ga. heat we're having now. Does the leaves of the rose campion remind anyone of lamb's ear? Similar. Jim
Jim, yes they do remind me of lamb's ear, although my Lychnis/Rose Campion leaves are "crinklier" than my Stachys byzantina (the fuzzy kind of lamb's ear...) One thing I've noticed about the Lychnis is that they don't mind the heat, but they are susceptible to rot (learned that the hard way.) So make sure they're in a well-drained spot and they should do just fine, and bloom for you next spring.
BTW, if anyone has the Burpee mix Judith referred to above, I'd love to work up a seed or plant trade to get some of the white and different rose colors...