Tree Peonies are slow growing, bushy shrubs reaching a height of only 1 to 1.2 metres in 10 years. Unlike herbaceous Peonies, they do not die back to the ground each year and do not need to be divided after 3 to 4 years.
Tree Peonies can be distinguished from the herbaceous peony cousins by the brown woody stems at the base, which remain even when the plant becomes deciduous. Once established, they are drought hardy and do not need watering over the Summer months. Tree Peonies will tolerate a wide range of soil conditions and simply require mulching to keep the roots cool and moist.