Hi Jan No they aren't performing well. I've had to move them multiple times for a number of years and when I bought this house I just shoved them into a corner with a bunch of others just for somewhere to put them. In the spring I'm going to dig up that area, amend the soil and put back the better ones. Trouble is they have suffered through all this abuse and they still flower but they just aren't doing as well as the others and I'm trying to find out what other peoples experiences with them has been so I can decide if they are worth putting back. So far no luck on finding anyone who has them.
Starling is registered but Root Beer doesn't seem to be which isn't really a problem though.