Mallow Ninebark (Physocarpus malvaceus) is a hardy and attractive deciduous shrub native to the Intermountain West. With its deeply lobed, maple-like leaves and richly textured bark that peels in thin layers (giving rise to the name "ninebark"), this plant delivers visual interest throughout the seasons. In spring and early summer, Mallow Ninebark bursts into clusters of small, white to pinkish flowers that attract pollinators. As the season progresses, the foliage turns from green to shades of red and bronze in autumn, creating a dynamic display. In winter, the exfoliating bark adds striking texture and contrast to dormant gardens. Use Mallow Ninebark as a specimen plant or massed in traditional garden beds and borders, foundation plantings, shade or woodland plantings, naturalistic style plantings, or hedges.
Photo Credit: Thayne Tuason
Mallow Ninebark
Irrigation Requirement: Moderate (1/2" every 7-10 days)
Mature Size: 4 - 8' tall and wide
Spacing: 4'+ apart
Bloom Colors: White to pink
Bloom Season: May - June or early July
Hardiness Zone: 3 - 7
Light Requirement: Full Sun, Partial Shade, Full Shade
Deer Resistant: Somewhat (deer browse, but it will generally will not harm the plant)
Salt Tolerant: No
Soils: Prefers well-draining loam soils, but will tolerate clay if well-draining.
Plants in the genus Physocarpus are host species for 13 known native pollinators. They are also provide nectar and pollen for pollinators and habitat for birds and other animals.

