Aha ... It's Karalee Petite Pink, a Proven Winners plant. I recognized that name the minute I read your post! Janet: As always, Thank You so much for your help!!
Note: I've always known this plant as Gaura lindheimeri but I see that it's now lumped in with Oenothera:
http://garden.org/plants/searc...
... or has it always been Oneothera?