Columbine from the 'Origami Series."
This has been blooming for over two months! We planted it last year and it overwintered just fine without any attention. It is close to the house, which may give it some protection. I cannot recommend this group of columbines too highly! We got a white one, very similar to this in form. The yellow one is EVEN MORE floriferous, and the form is slightly different, but it stopped blooming quite a while ago. These perennials are the most fun we have had in the garden for years. Everything seems to work!