Alphabetical Plant Listing

Sorbus americana (American Mountain Ash)

American Mountain Ash, Dogberry, Roundwood


Sorbus americana (American Mountain Ash) is a small, densely-branched shrub or deciduous tree adorned with a short trunk and spreading, slender branches that form an open rounded crown. The elegant foliage of compound-pinnate, dark green leaves, 2-4 in. long (5-10 cm), with gray-green undersides, warms up to orange-yellow to reddish purple to red in the fall, before falling to the ground, revealing the smooth gray bark becoming scaly with age. In late spring, a profusion of tiny white flowers held in flat-topped clusters are produced. They are quickly followed by abundant clusters of showy, bright orange-red berries in late summer. The berries persist well after the leaves are gone, providing a welcomed feast for various types of weary, migrating birds. Attractive in form, elegant in flower, colorful in fruit and foliage, Sorbus americana stars in almost every season of the year.

  • Grows up to 10-30 ft. in height and spread (3-9 m).
  • A full sun lover, this tree is easily grown in acidic, moist, humus-rich , well-drained soils.
  • No routine pruning necessary. Prune if needed from late fall to early spring.
  • Keep an eye out for aphids, blister beetles, glasshouse red spider mite, scale insects, sawflies, silver leaf, honey fungus, fireblight.
  • Native to eastern North America.

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Requirements

Hardiness 3 – 6
Heat Zones 1 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6
Plant Type Shrubs, Trees
Plant Family Sorbus - Mountain Ash
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid,Late)
Fall
Height 10' – 30' (3m – 9m)
Spread 10' – 30' (3m – 9m)
Water Needs Average
Maintenance Average
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy, Fruit & Berries
Native Plants United States, Midwest, Illinois, Michigan, Minnesota, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Georgia, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Attracts Birds
Garden Uses Small Gardens
Garden Styles Informal and Cottage, Prairie and Meadow

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Malachi Jacobs, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 3 – 6
Heat Zones 1 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6
Plant Type Shrubs, Trees
Plant Family Sorbus - Mountain Ash
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid,Late)
Fall
Height 10' – 30' (3m – 9m)
Spread 10' – 30' (3m – 9m)
Water Needs Average
Maintenance Average
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy, Fruit & Berries
Native Plants United States, Midwest, Illinois, Michigan, Minnesota, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Georgia, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Attracts Birds
Garden Uses Small Gardens
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Sorbus - Mountain Ash

Guides with Sorbus - Mountain Ash

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