Physocarpus Malvaceus, or more commonly know as Mallow Ninebark, is a shrub with green foliage and white flowers of the genus Physocarpus. It has a rapid growth rate and a height of 15 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during late spring, is intolerant of shade and is routinely available commercially. Physocarpus Malvaceus or Mallow Ninebark's floral region is North America US Lower 48, specifically in the states of Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington and Wyoming.
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