Physocarpus opulifolius Diabolo (Ninebark), 6 x 5. Attractive dark crimson leaves and white bloom. Few shrubs are easier to grow than ninebark. Tolerates an array of weather conditions and is largely left alone by animal pests. Plus, its peeling bark creates winter interest. Newer selections bear foliage in bold shades of purple and gold. Ninebark is a fast grower and makes an excellent large, informal hedge. It may suffer from powdery mildew with wet environment, but virtually carefree.
Diabolo Ninebark Diabolo ninebark is a plant-it-and-forget-it shrub. Its purple foliage looks good from spring through fall and creates great contrast with the shrub's white flowers in early summer. It seldom needs pruning or watering, making it a true garden winner. Name: Physocarpus opulifolius 'Diabolo' Zones: 3-7
'Dart's Gold' Ninebark... often confused as forsythia! Golden-green foliage, yellow in spring! Very resilient! About as close to a plant-it-and-forget-it shrub as you can get. 6ft tall, 8 ft wide. Zones 3-7. BONUS: The chartreuse foliage turns a nice shade of yellow (flushed with bronze) come autumn. It also has better resistance to powdery mildew than many of the purple-leaf varieties.
Prairie Ninebark (Physocarpus opulifolius) or sometimes referred to as Common Ninebark, provides excellent cover for birds with its numerous, arching stems. This native shrub can reach heights of 8-10 feet and almost as wide although older plants can be cut to the ground in the winter to maintain a smaller appearance if it is not needed as a privacy fence.
Ninebark - Dark purple, almost-black foliage makes Ninebark a must-have shrub for your garden. This easy-care plant is as tough as it is beautiful, standing up to heat, drought, and winter cold. It also has few insect or disease problems. In midsummer the plants develop ball-like heads of purplish-white flowers. There are also varieties with chartreuse, bronze, or green leaves. Ninebark thrives in Zones 3-7.