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Sorbus koehneana (Koehne mountain ash)
1 hour care
per year
per year
5m
Max height
Max height
6m
Max spread
Max spread
10-20 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Sorbus koehneana
Other names
Koehne mountain ash
Genus
Sorbus Sorbus
Species
S. koehneana - S. koehneana is a spreading, deciduous shrub or small tree with pinnate leaves divided into numerous, oblong to ovate, sharply toothed, dark green leaflets turning orange-red to reddish-purple in autumn. Small corymbs of white flowers in late spring are followed by spherical, white fruit with red stalks.
Sorbus koehneana is: Deciduous
Habit
Compact, Spreading
Toxicity
Fruit may cause stomach upset.
Flower
White in Spring
Foliage
Dark-green in Spring; Dark-green in Summer; Reddish-purple, Orange-red in Autumn
How to care
Watch out for
Specific pests
Aphids , Blister mite , Sawflies Aphids , Blister mite , Sawflies
Apple and pear canker , Fireblight Apple and pear canker , Fireblight
General care
Pruning
Pruning group 1.
Propagation methods
Budding, Grafting, Softwood cuttings
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Where to grow
Sorbus koehneana (Koehne mountain ash) will reach a height of 5m and a spread of 6m after 10-20 years.
Suggested uses
City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife
Cultivation
Grow in humus-rich, moderately fertile, neutral to acid soil. Drought and pollution tolerant. Tolerates partial shade but fruiting is best if sited in full sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
Botanical name
Sorbus koehneana
Other names
Koehne mountain ash
Genus
Sorbus Sorbus
Species
S. koehneana - S. koehneana is a spreading, deciduous shrub or small tree with pinnate leaves divided into numerous, oblong to ovate, sharply toothed, dark green leaflets turning orange-red to reddish-purple in autumn. Small corymbs of white flowers in late spring are followed by spherical, white fruit with red stalks.
Native to
China
Foliage
Deciduous
Habit
Compact, Spreading
Toxicity
Fruit may cause stomach upset.
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Colour
Flower
White in Spring
Foliage
Dark-green in Spring; Dark-green in Summer; Reddish-purple, Orange-red in Autumn
How to care
Watch out for
Specific pests
Aphids , Blister mite , Sawflies
Specific diseases
Apple and pear canker , Fireblight
General care
Pruning
Pruning group 1.
Propagation methods
Budding, Grafting, Softwood cuttings
Monthly care advice
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Where to grow
Sorbus koehneana (Koehne mountain ash) will reach a height of 5m and a spread of 6m after 10-20 years.
Suggested uses
City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife
Cultivation
Grow in humus-rich, moderately fertile, neutral to acid soil. Drought and pollution tolerant. Tolerates partial shade but fruiting is best if sited in full sun.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4
In order to add a note on this plant, please add this plant to your plant lists.
| 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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