Sorbus alnifolia
Korean mountain ash, Korean whitebeam
Sorbus Sorbus
S. alnifolia - S. alnifolia is a broadly conical, deciduous tree with ovate, to lance-shaped, toothed, dark green leaves turning red, orange, and yellow in autumn and dense corymbs of small white flowers in mid-spring followed by spherical red to dark pink fruit.
Sorbus alnifolia is: Deciduous
Broadly conical
Fruit may cause stomach upset.
White in Spring
Dark-green in Spring; Dark-green in Summer; Orange, Red, Yellow in Autumn
Aphids , Blister mite , Sawflies Aphids , Blister mite , Sawflies
Apple and pear canker , Fireblight Apple and pear canker , Fireblight
Pruning group 1.
Budding, Grafting, Softwood cuttings
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Sorbus alnifolia (Korean mountain ash) will reach a height of 20m and a spread of 8m after 10-20 years.
City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife
Best in moist but well-drained, acid soil in full sun. Suitable for cool climates. Does not do well in heat and humidity. Dislikes urban pollution.
Chalky, Loamy, Sandy
Moist but well-drained, Well-drained
Acid, Neutral
Partial Shade, Full Sun
South, East, West
Exposed, Sheltered
Hardy (H4)
Sorbus alnifolia
Korean mountain ash, Korean whitebeam
Sorbus Sorbus
S. alnifolia - S. alnifolia is a broadly conical, deciduous tree with ovate, to lance-shaped, toothed, dark green leaves turning red, orange, and yellow in autumn and dense corymbs of small white flowers in mid-spring followed by spherical red to dark pink fruit.
Deciduous
Broadly conical
Fruit may cause stomach upset.
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White in Spring
Dark-green in Spring; Dark-green in Summer; Orange, Red, Yellow in Autumn
Aphids , Blister mite , Sawflies
Apple and pear canker , Fireblight
Pruning group 1.
Budding, Grafting, Softwood cuttings
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Sorbus alnifolia (Korean mountain ash) will reach a height of 20m and a spread of 8m after 10-20 years.
City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife
Best in moist but well-drained, acid soil in full sun. Suitable for cool climates. Does not do well in heat and humidity. Dislikes urban pollution.
Chalky, Loamy, Sandy
Moist but well-drained, Well-drained
Acid, Neutral
Partial Shade, Full Sun
South, East, West
Exposed, Sheltered
Hardy (H4)
Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Sorbus alnifolia (Korean mountain ash)
grape ground pearl
Margarodes vitis
Insect
Absent
2
5
Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.
Sorbus alnifolia (Korean mountain ash)
Cedar-Quince rust; Quince rust; Rust of apple; Rust of juniper; Rust of quince
Gymnosporangium clavipes
Fungus
Absent
2
4
EU regulated rust disease which helps mitigate against introduction. A review of EU regulations will help to ensure that all hosts are regulated.
Sorbus alnifolia (Korean mountain ash)
Lance nematode; Nematode; Lance
Hoplolaimus spp.
Nematode
Absent
2
4
Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
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This plant likes... | Garden match | |
Soil types: | Chalky, Loamy, Sandy | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | South, East, West | Tell us... |
Exposure: | Exposed, Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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