Thanks Lyn. I always thought that vinca had to have some shade. I guess that isn't the case? My neighbor in Utah had it in full shade, and other neighbors had it in mostly shade. That is why I never considered it. The place I want to plant it will have no shade at all. From what I know, our climate is pretty much like that of Northern CA, but we have only lived here a short time. I think you may get more rain than we do, since our annual amount is supposed to be between 25 and 30 inches, but everything else seems very similar. I'm from CA originally, and am very familiar with the Northern part of the state.
Thanks for the suggestion!