Dont cut them back at all, and not for another 2-3 years. Climbers either tend to bloom a lot at 1st or put their energy into growing the first season. You wont want to prune now, you'll discourage blooming. Give it a few more years to take off & it will reward you. Then you could prune lightly but nothing major. Seems like those climbers like your yard!

Jen

Thanks for the advice. I'll just clean up the leaves, etc., then, and keep my fingers crossed for this summer as far as blossoms.