Is this the white lychnis? I have the hot pink one. I have a perennial geranium, about 3 ft. tall, pink, it was given as seeds, so no name. It does bloom all summer, but it does multiply all over, but baby plants easy to pull up. Does great in shade & sun both. I also have lemon balm, which does great in shade. In sun, it spreads all over, (member of the mint family). In shade it behaves pretty well. I can send seeds of both. I have been with gardenweb 10 yr. or so, with a few reviews. I usually don't trade, as our yard is full. If you are interested, just ask.
darlene

Hi again, Darla! :) - I would sure love some of your L.c. Alba seeds if you have any left. We have the "Commonus ordinarius" magenta variety. For trade, I have yellow Wallflower, Geum "Mrs. Bradshaw", Dusty Miller, assorted tomatoes and other heirloom veggies and culinary herbs (including Egyptian Walking Onion bulbils, Hailstone Radish, etc.). PLMK!

=Cryptid