On adventitious (sp) roots I had Coral Sunset die one year, or so I thought. So did several other peonies due to freeze/thaw cycle in spring. I was pretty bummed. Then two springs later, in the middle of the rhubarb that I had planted in that area up came two peonies from wayyyyy down deep. Coral Sunset I assume as I didn't have anything else there.
Thanks so much for the list. I printed it. I have several. Also am interested in dividing up some Itoh's but two are still recovering from that horrible spring and I don't want to set them back even further. I am tempted to see if I can dig on one side of a few of the peonies at ABG (Alaska Botanical Garden) to cut off a root, say like Burma Beauty to see if it will grow. We (ABG) could then sell those plants rather than having to buy new.