Did I kill my Tree Peony? I was trying to lift a herbaceous peony growing right beside it (they came mistakenly packaged together when i planted the tree peony 4-5 years ago). I got the fork under the herbaceous peony and lifted and there was an almighty cracking noise and BOTH plants lifted out. The herbaceous is fine, but the tree peony came out with a thick (about 3 inches diameter) "stump" of a root only about 10 inches long. All the big lateral roots had cracked off. I replanted it immediately, watered it in and staked it. Should I prune it back hard? It's carrying about 3-4 feet of top growth (loaded with buds...drat). The tree peony is fully dormant.
What about the broken off roots? Will they sprout?
