Moving established plants is a simple procedure. Cut the peony stems near ground level in September. Then carefully dig around and under each plant. Try to retain as much of the root system as possible. Now, promptly replant the peony in a sunny, well-drained site.
Peonies perform best in full sun and well-drained soils.
When selecting a planting site, choose an area that receives full sun. Avoid shady areas near large trees and shrubs. Peonies often fail to bloom satisfactorily if the roots are more than 2 inches deep. Transplanted peonies will not bloom well the first spring. In fact, it's advisable to remove any flower buds that form the first year.