How to prune a climbing rose?
How to Prune a Climbing Rose
Pruning climbing roses can be a tough job. Early spring pruning, I wait for the rosebush to show me what is still alive and what is dead. Otherwise with the older climbing roses, you will sacrifice many blooms with a heavy pruning due to them blooming on the "old wood" or last seasons growth. Newer climbing rosebushes can be shape or training pruned as needed. Here is a link to an article on this subject for you also: https://www.gardeningknowhow.com/ornamental/flowers/roses/pruning-climbing-roses.htm