These have been on my property since I moved in 30 years ago. I assume my grandmother planted them. They all but died out due to contractors storing their gear on the bush a few years ago but have gradually made their way back. Zone 5b/6a, Ohio.
Whatever Paul says is spot on every time. We are very fortunate to have such rose experts hanging around here. I know there are a lot of other places like facebook groups and such, but I hope we keep these forums going for a long time.