I live in Colorado and the Rose of Sharon had flowers for 2 months. The flower buds grew about 3 weeks ago and never opened. It's close to freezing, and do I cut the buds off or what should I do to my bush? The leaves have started to turn.
Rose of Sharon
Certified GKH Gardening Expert
In this case, I would wait until they die off. They will probably not open fully, as it is getting colder. This will not hurt them, though. It will encourage more blooming next year. Here is n article for more information: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm