I have what I think might be a Seven Sisters climber, or maybe rambler that only blooms once per season. I cut it way back after it blooms, and it then grows out nicely quite quickly, which I may or may not trim back again.

Prune all once-flowering bushes, shrubs, ramblers and climbers in late spring or early summer, as soon as possible after they finish flowering.

I copied the above from the link below. It is from a Texas site.

Sue

Here is a link that might be useful: Rose pruning