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Acer sieboldianum

Siebold's maple

A deciduous, large shrub or small tree about 6m tall, with rounded, mid-green, 7-11 lobed, finely toothed leaves to 9cm long, turning yellow-orange or red in autumn. Clusters of tiny yellow flowers in spring are followed by brownish winged fruits

Synonyms
Acer japonicum var. sieboldianum

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Size
Ultimate height
4–8 metres
Time to ultimate height
10–20 years
Ultimate spread
4–8 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Yellow Green
Summer Green Brown
Autumn Orange Yellow Red
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or North–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H6
Botanical 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

Correct

How to grow

Cultivation

Grow in fertile, moist but well-drained soil in sun or partial shade. See tree cultivation for further advice

Propagation

Propagate by seed (trees and shrubs), layering in autumn, grafting in late winter or softwood cuttings in early summer

Suggested planting locations and garden types
  • Cottage and informal garden
Pruning

Pruning group 1, if necessary, from late autumn to midwinter 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

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