Plant ID Needed Please
i was wondering if someone could help me identify this plant?? It has wood like bottom with huge flowers and dark leaf foliage. I did wonder if it is was a tree peony if there is a such thing?
Thhe reason why I need to identify it is because it's steams / branches have become so long I really need to prune them but I'm unsure how without knowing what it is. Any advice would be greatly received.
Forgive my ignorance but I'm quite new to gardening and trying to learn.
Many thanks in advance.