Thanks for your comments Liz, Craig, and Anya. Our planting conditions are all different, so outcomes will vary.
It will be interesting to see how these perform. The Lavender one seemed to be more vigorous than Hanakisoi. Luckily I know to watch for herbaceous stalks coming up from the nurse root, and will remove that if it happens.
I think somewhere on Cricket Hills' website they have a photo of a tree Peony root system and it is amazing!!
All the own root TP I've seen are expensive, so I don't know if I would risk them in a pot until I see how these do.