Sorbus koehneana C.K. Schneid.
Koehne mountain ash
S. koehneana is a medium-sized deciduous shrub or small tree to 6m, with reddish shoots and fern-like pinnate leaves composed of many small leaflets. Flowers creamy-white; fruits 6mm, white with red stalks
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Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | White | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Brown Red | White | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Rosaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
- Genus
Sorbus can be deciduous trees or shrubs with simple or pinnate leaves and clusters of small white or pink flowers, followed by white, yellow, pink, red or brown berries; some have fine autumn colour
- Name status
Correct
- Plant range
- C. China
How to grow
Cultivation
Grow in moderately fertile, humus-rich, well-drained soil in full sun or light dappled shade
Propagation
Propagate by softwood cuttings in early summer, by chip budding in summer or grafting
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Flower borders and beds
Pruning
Pests
May be susceptible to aphids, scale insects, pear blister mite, red spider mite and sawfly larvae
Diseases
May be susceptible to fireblight, apple canker, silver leaf and honey fungus
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