Fraxinus mandshurica
Japanese ash
Large, deciduous tree reaching 30m in height, with greyish shoots and stalkless, slender dark green leaves about 40cm long composed of up to 13 leaflets, turning red and yellow in autumn. Greenish-yellow petalless flowers in compact panicles in spring may be followed by large clusters of broadly winged brownish fruits produced on last years wood (fruits not produced in Britain). Dark brown winter buds
Size
Ultimate height
Higher than 12 metresTime to ultimate height
20–50 yearsUltimate spread
Wider than 8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow Green | Green | ||
|---|---|---|---|---|
| Summer | Green | Green Brown | ||
| Autumn | Red Yellow | |||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Oleaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- Genus
Fraxinus are medium-sized to large, mostly deciduous trees with attractive pinnate leaves, sometimes conspicuous flowers and autumn colour, and distinctive winged fruits
- Name status
Correct
- Plant range
- Far East
How to grow
Cultivation
Excellent for woodland and coastal gardens where there is moist but well-drained alkaline or neutral soil and full sun. See tree cultivation
Propagation
Propagate by seed or grafting
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Wildlife gardens
Pruning
Pests
Generally pest-free
Diseases
Ash dieback has recently been found in the UK. Restrictions have been put in place (from 29 October 2012) regarding both the importation of ash from abroad and the movement of ash within the UK. May also be susceptible to honey fungus
Get involved
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