Unfortunately it is not. I’ve tried several times but could never find usable pollen nor carpels. Cutting it down to promote growth of the secondary smaller buds didn’t help either, I got smaller flowers but they were still double.
I’d very much like a seedling of it because it’s very good, but I’m afraid it’s a dead end when it comes to hybridizing.
All the best,
Growing peonies for cutflowers in Belgium. Also hybridizing them.