When to prune shrub roses?
Certified GKH Gardening Expert
Spring or fall, which seems to be dependent on both the gardener's preference and region. However, I would wait for spring before pruning as this will ensure that it does not suffer from any damage to unexpected frost/freezes that may occur. This article should help you: https://www.gardeningknowhow.com/ornamental/flowers/roses/pruning-roses.htm