My oldest one is going crazy right now despite the fact that I rarely water it. It's hard to say how much sun it gets as it's surrounded on all sides except east by large trees. It probably leans a bit more toward the sun.
I have a 3 year old one that is shaded by trees and faces north. And it's blooming now.
Two others are babies but also shaded. I do try to water them but maybe I shouldn't.
Maybe I'll go outside and take some pictures. I've posted pics before of the big one but looking at it yesterday I realized it was blooming more than ever.
My only wish is that they were evergreen! Oh, I also wish that little Peter Cottontail didn't use the big one as a hiding place.