Hello:
I live in Growing Zone 7. I also have a Red Charm peony which is considered to have an early bloom time. The Mystery peony blooms just after Red Charm so it must be a mid-season bloomer. I want to examine my peony again tonight to see if its petals fade to silver at the edges. This will help me decide if it is Rozilla, Bev, Edulis Superba, Edulis Supreme or some other variety.
William