Ninebark

Physocarpus opulifolius

Physocarpus opulifolius: Form of 'Diablo'

Ninebark is a deciduous shrub with clusters of pale flowers and peeling bark that becomes easier to see once the leaves have fallen.

Height
152–244 cm / 5–8 ft
Spread
121–183 cm / 4–6 ft
Light
Full sun / Partial shade
Soil moisture
Dry / Moist, well-drained
Flowering
Spring, Summer
Foliage
Deciduous
Maintenance
Medium
USDA zones
2a–8b
Check what suits your garden

Planting

Choose sun or partial shade and slightly acidic, well-drained soil, from dry to moderately moist. It tolerates varied ground and appreciates some shade in hotter regions.

Care

If shaping is needed, prune just after flowering because the next flowers grow on older wood. For a full rejuvenation, the shrub can be cut to the ground in winter.

Before planting: Powdery mildew and fireblight can occur.

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Sources & photo credit

Plant reference: NC State Extension Gardener Plant Toolbox. Content checked . Flowering seasons vary with local climate; USDA zones describe winter cold tolerance.