Help with large climber
I've waited too late to prune and I really don't want to prune this rose bush. BUTI wanted to see if you could tell me the downside of not pruning out the large canes. The canes are an inch to an inch and a half in diameter at the base of the rose. The flowers are really pretty in the spring with hundreds of roses. They are healthy right now although they get lots of black spot in the summer. If I should go ahead and prune out a few of the older canes, I can do it. I DO plan to prune the vertical branches that got long over the winter and tie down the ones that are floating. Thanks for any advice on pruning the large canes!