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Acer griseum AGM

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© RHS

Characteristics

Plant type

Tree

Habit

Spreading / Branched

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Yellow in Spring

Foliage

Green in Spring and Summer
Orange and Red in Autumn

Fruit

Green in Autumn

Stem

Brown and Orange in Autumn, Spring, Summer and Winter

Size

Ultimate height

8-12 metres

Ultimate spread

4-8 metres

Time to ultimate height

20-50 years


Preferred common name

paperbark maple

Family

Sapindaceae


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

A. griseum is a small spreading deciduous tree with attractive peeling, papery chestnut-brown bark. Leaves with 3 leaflets, downy and whitish beneath, turning brilliant red and orange in autumn. Flowers small

Synonym(s)

  • Acer nikoense (Miq.) Maxim. var. griseum Franch.

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • North-facing, East-facing, South-facing or West-facing
  • Sheltered

Cultivation

Grow in a moist but well-drained soil

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by seed or grafting

Suggested planting locations and garden types

Architectural or Low Maintenance


How to care

Pruning

Pruning group 1

Pests

Aphids and horse chestnut scale may be a problem

Diseases

Verticillium wilt may be a problem