ACER
Commonly known as Japanese maple
SPECIMEN SIZED VARIETIES OF ACER PALMATUM ARE IN 7.5 OR 10 LITRE POTS AND ARE ALL APPROXIMATELY 4-6 FEET IN HEIGHT.
SPECIMEN SIZED VARIETIES OF ACER PALMATUM DISSECTUM ARE SMALLER GROWING AND THEREFORE CONSIDERABLY SMALLER IN SIZE ALTHOUGH OF A SIMILAR AGE.
Genus of 120 species of evergreen and deciduous trees and shrubs, from woodlands mainly, in Europe, northern Africa, Asia and North and Central America.
Some form large trees and others are understorey plants. The most popular decorative forms are from the palmatum group, Japanese maples which have been cultivated in Japan for centuries and is a well-known temple tree and bonsai subject . They have appeared in art forms for centuries.
Palmatum (hand-like) was the name given by Swedish doctor-botanist Carl Peter Thunberg late in the 18th century, following the ancient Japanese where they were likened to hands of frogs or hands of babies.
The UK representative is the field maple, A. campestre, a medium-sized tree favouring chalk soils but widely planted. It is a wildlife plant attractive to aphids which are preyed on by ladybirds, hoverflies and birds. Caterpillars eat the leaves and the nectar and pollen in the flowers attract insects as well.
The wood has the highest density of all the European maples and is used for veneers and harps.
Plant Details
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Good to knowMore tolerant of full sun than most palmatums. Maximum size reached in about 20 years. 1.2m (4ft) high by 1m (39in) in 10 years
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Pests & DiseasesAphids, mites, scale insects, caterpillars, Verticillium wilt, leaf scorch, honey fungus
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Place of originChina, Japan, Korea
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DeciduousSmall, deeply lobed, pale green leaves 3-8cm (1¼-3in) long, opening brilliant pink, later turning green
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Fully hardy
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Height3m (10ft)
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Spread4m (13ft)
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Tall ShrubSlow-growing shrub. Inconspicuous flowers in spring. Winged fruits in autumn
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Hardy - very cold winterHardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F)
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Autumn Seasonal Interest
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Spring Seasonal Interest
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Mature Size3m (10ft)
4m (13ft)
Planting Tips and Care Advice
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Garden Location/Conditions
Patio / pot plantsSuitable for small gardens
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Pruning group
Pruning group 1Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
Late autumn to midwinter -
Soil Conditions
Fertile moist well-drained soil
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Sun Requirements
Full sunShelter from cold winds and late frostsPartial shade
- How to plant/move a shrub
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