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Acer palmatum 'Emerald Isle'

Japanese maple 'Emerald Isle'

A small, fast-growing semi-pendulous deciduous tree around 3m in height with deeply lobed, feathery foliage which emerges lime green in spring, turning to emerald green in summer then finally bright burgundy-red in autumn. A good choice for containers and as a specimen tree

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Size
Ultimate height
2.5–4 metres
Time to ultimate height
5–10 years
Ultimate spread
2.5–4 metres
Growing conditions
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Red
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or West–facing or North–facing

Exposure
Sheltered
Hardiness
H6
Botanical details
Family
Sapindaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy, Pendulous weeping
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

Grow in any moisture-retentive, well-drained soil in a sheltered position. Leaf colour is best in partial shade, although full sun can be tolerated if soil is reliably moist. Leaf scorch can be caused by lack of soil moisture or excessive exposure. See Japanese maples cultivation

Propagation

Propagate by softwood cuttings, layering or by grafting. Plants grown from seed are unlikely to come true, but may still be garden worthy

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
Pruning

Pruning group 1, only from late autumn to mid-winter

Pests

May be susceptible to aphids and scale insects, including horse chestnut scale

Diseases

May be susceptible to Verticillium wilt, Acer leaf scorch and honey fungus

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