I have two of Melanie Mason's (North Country) cultivars, and love them both. They are both mid-late. I haven't had Circular Thinking long enough to comment on its habits, but Bordello Queen blooms for a long time.
Last year was the first full season for Circular Thinking, and it was gorgeous. In my garden it is a true baby pink. This photo is accurate colour-wise.
I also have Bordello Queen. This is a really vigorous cultivar here and blooms heavily.
