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Acer palmatum 'Nigrum' (A)

black Japanese maple

A deciduous shrub or small tree with 5- to 7-lobed leaves, deep purple in spring and summer, becoming crimson in autumn

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Size
Ultimate height
2.5–4 metres
Time to ultimate height
20–50 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Purple Purple
Summer Purple
Autumn Red Purple
Winter
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H6
Botanical details
Family
Sapindaceae
Native to the UK
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

Accepted

How to grow

Cultivation

Grow in a moist but well-drained soil. Water in summer if necessary. Leaf colour is best in partial shade, although full sun can be tolerated. Leaf scorch can be caused by lack of soil moisture or excessive exposure

Propagation

Propagate by grafting or softwood cuttings

Suggested planting locations and garden types
  • Cottage and informal garden
  • City and courtyard gardens
  • Low Maintenance
Pruning

Pruning group 1

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

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