Mallow Ninebark
Physocarpus malvaceus
Last reviewed: August 2026
The USDA PLANTS Database (opens in new tab) does not flag Mallow Ninebark as toxic to livestock.
Light
full sun
Water
low
Size
36"–72" H × 36"–72" W
Bloom
May, Jun, Jul
Native to
CO, ID, MT, NV and 4 more states
Pollinators
bees, beetles
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 432 programs across 44 states, each with a link to the provider and the date we last checked it.
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Mallow ninebark is a medium-sized native shrub with attractive white flower clusters that bloom from May through July. This drought-tolerant plant develops a rounded form and provides seasonal interest with its deciduous foliage and distinctive peeling bark.
In an HOA neighborhood
Mallow Ninebark is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Winter dormancy leaves bare branches
- May require occasional pruning to maintain shape
Wildlife value
The abundant white flowers attract bees and beetles during the long blooming season. This native shrub provides valuable habitat and nectar sources for local pollinators.
Common questions
- How much sun does Mallow Ninebark need?
- Mallow Ninebark grows best in full sun conditions.
- When does Mallow Ninebark bloom?
- Mallow Ninebark blooms in May, June, and July.
- Where is Mallow Ninebark native?
- Mallow Ninebark (Physocarpus malvaceus) is native to CO, ID, MT, NV and 4 more states, per vouchered herbarium specimen records and regional native plant society lists.
- Is Mallow Ninebark toxic to livestock?
- The USDA PLANTS Database does not flag Mallow Ninebark as toxic to livestock.
- What pollinators does Mallow Ninebark attract?
- Mallow Ninebark draws bees and beetles.
- Is Mallow Ninebark HOA-friendly?
- Mallow Ninebark is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Mallow Ninebark? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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