I don't think it will sucker and I don't think it was grafted. It's one of the easiest roses to grow from cuttings, so I doubt that anyone ever bothered to graft it.
What will become of the poor possum?
Vavoom doesn't take up much room. It's only about 3 feet tall and 2 feet wide here. I personally wouldn't grow it again if something happened to it, but that's because I'm so jaded that I don't get excited by solid-color roses anymore. I like orange, but it has to be mixed with other colors to appeal to my taste.
