Does clematis damage other plants or trees when they cling on .
Also, can clematis be pruned after flowering season.
Certified GKH Gardening Expert
Clematis isn't known for being invasive, or harmful to structure or anything that it attaches to.
Pruning should occur after bloom drop. This article will help you to know when and how to prune clematis: https://www.gardeningknowhow.com/ornamental/vines/clematis/pruning-clematis-vines.htm