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Physocarpus
Also called Ninebarks
Physocarpus, commonly called ninebark, is a genus of flowering plants in the family Rosaceae. All but two species are native to North America; the two outliers being native to northeastern Asia.
The genus name Physocarpus comes from the Greek for "bladder fruit", referring to the inflated fruits of some species. The common name 'ninebark' refers to the peeling bark of mature branches, which comes away in strips.
Propagation is by seeds sown as soon as ripe or they can be stored dry in airtight containers in a cool place for up to a year and then sown. Plants can be divided in the early spring, with a sharp spade or even an axe, chopping right through the middle. Softwood and hardwood cuttings are easy to root.
Garden writers describe few if any problems, but it is not unheard for armies of aphids to attack some varieties. Some seaside specimens exhibit powdery mildew in summer.
Dwarf ninebark · Pacific ninebark · Mallow ninebark · Mountain ninebark · Common ninebark
Text excerpted from the Wikipedia article Physocarpus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
