Dianne, your tree peonies are gorgeous. I don't seem to have much luck with them either. I planted a 4 year old Coral Terrace from Cricket Hill last March, and only 1 of the 4 stems is showing any growth this year, my Black Dragon Holds a Slpendid Flower ( boy that's a mouthful😁) looks decent. My Koukamon and Shimanishiki are doing fine, but Hanakisoi, Renkaku, Shimadajin, and Kinshi bit the dust
I just don't know what I'm doing wrong.
