how can I tell if I have a herbaceous or tree peony
I just recently bought what I thought was a tree peony--green leaves growing from dark woody stumps--kind of like citrus have leaves coming off of a stump. I know that to get a tree peony, you have to graft it onto a herbaceous peony.
Then someone pointed out that the peony bouchela is really a herbaceous peony--I got really confused. So how can I tell which one I have. Do I have to bury the woody stumps when I'm planting it?
Thanks in advance.