Montana Rubens hardy in zone 5b?
I confess... I went into Home Depot for hardware and came out with the biggest rooted, most multi-stemmed, longest vined clematis I've seen all year. These are amazing! They only had Mrs. Robert Brydon, Polish Spirit and Montana Rubens. So I got myself a gorgeous Montana Rubens, with something like 10 thick stems, for $15. (Compared to the tiny 2 stemmer I got at Lowes for $12.)
BUT now I get home and see that Montana is not hardy in zone 5? The tag on this one said 5-9. Ugh.
Oh, and I was looking for clematis to put on a north face, between hydrangeas. I know Montana prefers sun, but was hoping it could do okay in light shade, since they're so prolific?