Maybe a bizarre question
I am getting way up in the years and am very interested in tree peonies. I have a nice collection of herbaceous peonies and just last spring got two Itohs - Cora Louise and Bartzella.
I have an opportunity to trade for some tree peonies and wonder how long I will have to live to see a mature specimen? I especially like the bi-colors and would love to try them if it won't take too long for them to bloom.
Not trying to be morose here --- just practical.