The best months to transplant peonies are September to November.
This period aligns with the onset of dormancy for peony plants, making it an ideal time for relocation.
During these months, peonies have finished their growing season, and their foliage begins to die back, allowing the plants to conserve energy and resources for the winter.
Transplanting in the fall allows the roots to establish themselves in their new location before the ground freezes
Which is crucial for the plant's recovery and future growth.
While it is possible to transplant peonies in early spring before they start to grow, this can stress the plants and may result in poor blooming for several years.
Therefore, for the best chances of success, it is recommended to move peonies in the fall, ensuring they are well-prepared for the upcoming winter months and ready to thrive in their new spot come spring.