Plant bare root herbaceous peonies in fall, not spring, as the falling temperatures of autumn trigger root growth.  (Spring planting for bare root plants has a low likelihood of success but container-grown plants can be introduced to the garden in spring with care taken that the roots are not damaged. Container-grown plants have a greater risk of producing inferior plants in the garden.)

Before you plant, choose a good site and prepare the soil. You can read about all the steps to take for successful peonies in our Guide to Herbaceous Peonies.

Courtesy of NYBG Plant Information Service