Rock’s Variety, aka Gansu Mudan, aka Joseph Rock Tree Peony (very winter-hardy)

Rock’s Variety Tree Peony

Chinese Gansu Mudan. Very winter-hardy. These are grafted plants and are guaranteed to be authentic. One of the most winter-hardy tree peonies; recommended for colder climates.

This is as close as one could get to a species rockii. Seeds were collected in the wild.