Acer shirasawanum 'Palmatifolium'
A deciduous small tree or large shrub, to around 5m high, with rounded leaves divided into up to 11 coarsely toothed lobes. Leaves emerge pale green tinted with pink, and turn bright green in summer before colouring orange, red and purple in autumn. Clusters of creamy-yellow flowers in spring are followed by brownish-red winged fruits
Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Green Pink | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Yellow Orange Red Purple | Red Brown | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Sapindaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Acer can be deciduous trees or large shrubs with paired, often palmately-lobed leaves and small flowers followed by characteristic winged fruits. Many have fine autumn colour, and some have ornamental stems
- Name status
Unresolved
How to grow
Cultivation
Grows best in slightly acidic, humus-rich, well-drained soil, but tolerates most soils if improved with well-rotted organic matter. Hot, dry air, cold wind and late frost may cause leaf scorching. Mulch in autumn to protect shallow roots from cold and drying out. See Japanese maple cultivation
Propagation
Suggested planting locations and garden types
- Architectural
- Low Maintenance
Pruning
Minimal pruning required; see pruning group 1. Prune from late autumn to mid-winter only
Pests
May be susceptible to Acer gall mite, aphids, caterpillars and horse chestnut scale
Diseases
May be susceptible to Verticillium wilt, Acer leaf scorch and honey fungus
Get involved
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