Well, I have a favorite perennial now. I bought two of these last spring, and they were among the lucky purchases which got planted somewhere (along the north side of the garage, in this particular case). I wasn't feeling especially optimistic about them coming back, but they have, and one of the two is now in full bloom, while the other is heavily budded but not actually flowering yet (as I write, last Wednesday).
I bought them without having seen the flowers, so this display is . . . well, I can't say completely unexpected, because I knew they were going to do something, but I didn't expect anything quite this dramatic.
The only thing I don't like about them so much is that handling them at all makes my hands really itchy. I suppose this is why they make gardening gloves.