Grows rather rapidly into an oval, dense, graceful spreading to pendulous crown on deep well-drained, moist, acid soil. A popular ornamental tree, prized for it bright orange clusters of fruit since Colonial times. Much troubled by fire blight, sun scald, wood decay, and trunk borers in warmer areas and on alkaline soils. Does better where the summers and winters are cold. Not recommended south of Highway 30 or on alkaline soils.
Several cultivars are available.
30 x 25 Hardy Zone 3. Native in areas north of Iowa. Fruits are larger and showier than those of American mountainash. Develops into a nicely-rounded, small tree. Rare, hard to find.