Showy Mountain Ash

Sorbus decora

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Sorbus (sor-bus) (Info)
Species: decora (DEK-or-uh) (Info)




Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


20-30 ft. (6-9 m)


15-20 ft. (4.7-6 m)


USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade



Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer


Grown for foliage



Other details:

Unknown - Tell us

Soil pH requirements:

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

From softwood cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

By grafting

By budding

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds


This plant has been said to grow in the following regions:

Moscow, Idaho

Orono, Maine

Ely, Minnesota

Minneapolis, Minnesota

Spokane, Washington

Madison, Wisconsin

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Gardeners' Notes:


On Jul 29, 2015, Rickwebb from Downingtown, PA wrote:

A lovely small to medium sized ornamental tree, usually 20 to 25 feet high, but to 50 feet is possible. Its compound leaves have 11 to 15 leaflets. It develops a good golden to red-purple fall color. Young bark is smooth and tan-gray with conspicuous lenticels that becomes scaly and brownish with age. Its white flower clusters are a little larger than the very similar American Mountainash of 4" diameter in late spring. The bright scarlet-red or orange-red furits are a little larger than the American species, being 2/5" in diameter, and are eaten by birds and small mammals an can be made into jelly and jams.. Grows in a large variety of soils of draining wet to well-drained. Dislikes hot summers and/or drought. Grows about 1 to 1.5 feet/year and lives about 25 to 50 years. Native to Newfoun... read more


On May 13, 2010, darylmitchell from Saskatoon, SK (Zone 3a) wrote:

These trees earn their keep in a northern climate, and provide interest in all four seasons. The white flowers are very showy in spring, followed by large clusters of bright red berries in summer. By autumn, the leaves turn a bright red-orange and hide the berries. After the leaves drop off in winter, the berries stay on the tree and reappear to provide colour until spring. Birds, particularly bohemian waxwings, feed on the berries during winter. The coppery bark also adds interest.