Physocarpus opulifolius (L.) Maxim.

Atlantic Ninebark; Eastern Ninebark; Opulaster

Shrub

Perennial

Vascular

Ninebark is a native deciduous shrub in the Rose family (Rosaceae). It can be found throughout most of Alabama. Ninebark is typically found along streams or on rocky hillsides in full or partial sun. Its spreading stems can reach 8 feet in height, though they are more typically around 6 feet. The common name Ninebark refers to the exfoliating bark on older stems. The bark peels in curling strips revealing the reddish-brown inner bark. These curling strips often resemble the number “9”. Leaves are petiolate, alternate, ovate to obovate in outline, 3-5 lobed, with serrate margins. Leaves are glabrous above and glabrous or slightly pubescent below. Flowers are produced in 30-50 flowered hemispheric racemes on short side shoots along the main stems. Each flower has 5 white petals. The fruit is an inflated follicle. The common name “Alabama Bridal Wreath” is in reference to the flowers which resemble those of the closely related non-native Bridal Wreaths in the genus Spiraea. Ninebark is a fast-growing shrub that thrives under many soil and moisture conditions. Best flowering occurs on plants in full or partial sun. Older Ninebark stems can be removed to promote new growth and rejuvenate the plant. Plants can be grown from seed or cuttings. Many horticultural varieties have been developed including 'Nanus' which only reaches 2 feet in height; 'Dart's Gold' and 'Nugget' with yellowish foliage; and 'Monlo' with dark purple foliage.—A. Diamond.

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Native FAC- (NWPL) G5 (Global Rank)

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