Paeonia x Itoh 'Bartzella'

Sizes available: 3 Gallon

Basics: zones 4-8, 32" x 36", sun to part shade, fragrant, six inch, semi-double lemon yellow flowers in late spring to early summer. moist, well-drained soil with medium fertility

Common names: Intersectional Peony: across between a tree peony and an herbaceous peony

Family: Paeoniaceae

Origin/Distribution: Named for Toichi Itoh who made the first successful cross between an herbaceous peony and a tree peony, ITOH peonies combine strengths from both growth forms. 'Bartzella' was developed by peony breeder Roger Anderson.

More: The Itoh crosses die back almost to the ground in winter (like their herbaceous peony parent). However, they retain a small amount of woody stem above ground from which new shoots will appear next spring, so be mindful of cutting back too hard if you are a tidy gardener. Intersectional peonies have exceptionally large, beautiful flowers like their tree peony parent. "Tree" peonies are deciduous shrubs and retain a woody structure in dormancy unlike herbaceous peonies which form new shoots underground. These crosses have a longer bloom time than the herbaceous peony, stronger more upright stems, a wider range of bloom color, and larger flowers.

The peony has been cultivated in China since the 7th century and was introduced in England in the mid-eighteenth century. The American Peony Society recognizes over 8000 named cultivars. Humans have a long and rich history with this plant. As well as their ornamental value, they have culinary and medicinal attributes.

Nursery: Van Berkum

Image credit: flower- Van Berkum Nursery; Honey Petal Plants - the spring foliage covered with raindrops