A peony asks for just a few things. Full sun, somewhat alkaline soil, & planting at the proper depth. The eyes should be 2" below ground after they are watered in & the ground settles. They may refuse to bloom, if they are set too shallow or too deep. As long lived as peonies are, they resent transplanting. Smaller divisions transplant more readily. Larger divisions will take a number of yrs to grow into a robust, heavily blooming plant. Herbaceous peonies die back in winter & bloom in May.