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Sorbus 'Eastern Promise' AGM

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© RHS 1999

Characteristics

Plant type

Tree

Habit

Bushy

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Flower

White in Spring

Foliage

Green in Spring and Summer
Orange, Purple and Red in Autumn

Fruit

Dark Pink in Autumn

Size

Ultimate height

4-8 metres

Ultimate spread

2.5-4 metres

Time to ultimate height

20-50 years


Preferred common name

mountain ash 'Eastern Promise'

Family

Rosaceae


Sorbus can be deciduous trees or shrubs with simple or pinnate leaves and clusters of small white or pink flowers, followed by white, yellow, pink, red or brown berries; some have fine autumn colour

'Eastern Promise' is a small deciduous tree with an oval crown, with pinnate leaves that turn pruple and orange-red in autumn, and clusters of small white flowers followed by rose-pink berries in autumn

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

Cultivation

Grow in moderately fertile, humus-rich soil. Tolerant of atmospheric pollution; ideal specimen tree in small garden

Soil

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

Propagation

Propagate by softwood cuttings in early summer or budding in summer or grafting in winter. Propagate by seed sown outdoors in autumn

Suggested planting locations and garden types

City/Courtyard Gardens, Coastal, Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Pruning group 1

Pests

May be attacked by aphids, blister mites and sawflies

Diseases

May be affected by apple canker and fireblight