Tree peony for sale is best planted in the late fall before the first frost. Avoid planting in late spring and in summer. The hot and dry weather can hinder the plants’ establishment. They are available in bare root, rooted balled tree, or container-grown grafted rootstock forms.
Depending on the size of the plant you buy, blooming can occur from the first year to 4 years after planting. Therefore, tree Peonies are not plants for the impatient gardener. Also, the flowers of a new plant may not reach their potential for several seasons.