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Cornell University

Species: Sorbus alnifolia

(sore'bus al-ni-fo'lee-ah)

Sorbus alnifolia

Korean Mountain Ash

Found on Course Walks

Rosaceous & Flowering Trees

Map of plant locations

(Plant location data may be incomplete)

In Collection(s):

Recommended Urban Trees Collection

Cultivars

'Redbird'

Ornamental Characteristics

Tree > 30 feet

40' - 50' (spread 20' - 30')

Deciduous

pyramidal-round

full sun

Environmental Characteristics

Full sun

4b

Can tolerate acid to alkaline soil (pH 5.0 to 8.0)

attractive flowers and persistent red-orange fruit; orange-red fall color; beechlike foliage emerges bright green, turns to dark green and then yellow, golden, orange in fall

Yes

Consistently moist, well-drained soil; Occasional periods of dry soil
See graphic below

Insect Disease

susceptible to fireblight and borer

Bare Root Transplanting

Easy

Other

transplant in spring or fall, native Korea, China and Japan

Moisture Tolerance Graphic

Please view this page on a tablet or larger screen for the moisture graph

Moisture Tolerance

Moisture graphic
Occasionally saturated or very wet soil
Consistently moist, well-drained soil
Occasional periods of dry soil
Prolonged periods of dry soil
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