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Which Peonies Can Grow in Zone 9?

By Sheri Ann Richerson ; Updated September 21, 2017
Pink peony flower.

Growing peonies in U.S. Department of Agricultural hardiness zone 9 is challenging because it is not cold enough to sufficiently chill the plants, which is what induces the blooms, according to Clemson University Cooperative Extension. Gardeners in zone 9 who are determined to grow these large flowered and fragrant beauties should choose tree instead of herbaceous peonies. Tree peonies have larger blooms than their herbaceous relatives and offer a wider choice of flower colors.

Coral Terrace

Coral-pink peonies stand out in the garden.

The 8-inch coral-pink ruffled blooms of this tree peony lighten around the outer edges as the flowers age. This particular variety will reach its mature height of 4 to 5 feet tall and wide in 10 years. Coral Terrace is hardy in USDA hardiness zones 4 to 9.

Phoenix White

Phoenix White tree peony

The 8-inch, single white fragrant flowers have a slight pink color to them, which quickly fades once they are fully open. The mature height and width of 4 to 5 feet is reached within 8 to 10 years. Phoenix White is a reliable bloomer that is hardy in USDA hardiness zones 4 to 9.

Hibiscus With a Pink Complexion

A pink peony not fully opened.

The sweet fragrance and bright-pink 8-inch double rose-shaped flowers are what make this tree peony stand out. It is an easy, reliable bloomer that reaches a mature height and width of just 4 feet. It is hardy in USDA hardiness zones 4 to 9.

Alice Harding

This tree peony with its bright yellow flowers has been around since 1935. The mature size of this tree peony is 30 inches tall by 36 inches wide. The 6- to 7-inch double flowers have a light lemon fragrance. It is hardy in USDA hardiness zones 4 to 9.

Black Dragon

The dark magenta red flowers of this variety are close as hybridizers have come to creating a true black peony flower. The plant matures at a height of 4 to 5 feet and a width of 4 feet. The fragrant 8-inch flowers have an anemone shape. The plant is hardy in USDA hardiness zones 4 to 9.


About the Author


Sheri Ann Richerson is a nationally acclaimed bestselling author who has been writing professionally since 1981. Her bestselling books include "The Complete Idiot's Guide To Year-Round Gardening," "The Complete Idiot's Guide To Seed Saving & Starting" and "101 Self-Sufficiency Gardening Tips." Richerson attended Ball State University and Huntington University, where she majored in communications and minored in theatrical arts.