Herbaceous peonies should be divided in the fall. Cut off old foliage, lift the clumps carefully, and using a hose, gently remove all soil. Cut the crown into divisions using a sharp knife or spade. Each division should consist of 3-4 roots and 3-5 eyes (buds). The outside of the clump yields the best divisions.

Multi-stemmed tree peonies can be divided in a similar manner. Single-stemmed tree peonies cannot be divided.

Learn more about growing peonies in our Guide to Herbacious Peonies and our Guide to Tree Peonies.

For tips on a variety of gardening topics, see our Plant Information Guides.
- Courtesy of NYBG Plant Information Service