Thanks LG! I will be glad if it really blooms for me this year, if not always the next year.
Karen, those seedings were seeds from Cricket Hill garden, all I know it's they are Rockii variety, nothing special about them. May be next year I can try to create some of my own tree peony, it's all depends on how fast they grow, most of my tree peonies are pretty young, 2-3 years.
I will post pictures if they do blooms in the Spring.