Mountain Ash (Sorbus)
Creamy white blossoms are grouped in umbrella-like clusters that are scattered over a dense foliage canopy in spring. In late summer, they develop into hanging clusters of small, red or orange, berry-like fruit. The show doesn’t stop there. In the fall, most mountain ashes develop spectacular fall colors of yellow-gold or orange-red leaves. Birds relish the berries into late fall and winter, long after leaves have dropped. Average height is 25 feet, 15 feet wide with some compact varieties. Hardy to USDA Zones 2 to 3.
How to use it: Mountain ash trees are an ideal garden or lawn tree, providing a good focal point with little trouble with suckers. Often planted as a street/sidewalk tree, but berries can make a mess in the fall.
Cultivation: Plants are easily grown in good, well-drained soil and full sun. Will tolerate damp conditions but will suffer in stressed urban settings.
S. americana. Grows to 30 feet tall and wide, forming a rounded crown. Dark green leaves with lighter undersides reach 10 inches long and consist of up to 17 leaflets. Brilliant yellow color in fall. Orange-red fruit. Hardy to Zone 1.