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Acer triflorum AGM

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© RHS 1999

Characteristics

Plant type

Tree

Habit

Bushy

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Flower

Green and Yellow in Spring

Foliage

Green in Spring and Summer
Orange and Red in Autumn

Size

Ultimate height

8-12 metres

Ultimate spread

4-8 metres

Time to ultimate height

10-20 years


Preferred common name

three-flowered 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. triflorum is a bushy tree with leaves divided into 3 narrow, toothed leaflets, greyish beneath. Small clusters of yellow-green flowers in spring, and orange autumn colour

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

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

Soil

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

Propagation

Propagate by grafting or softwood cuttings

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden or Low Maintenance


How to care

Pruning

Pruning group 1

Pests

Aphids and horse chestnut scale may be a problem

Diseases

Verticillium wilt sometimes a problem