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Sorbus 'Eastern Promise'
  • RHS AGM

mountain ash 'Eastern Promise'

'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

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Size
Ultimate height
4–8 metres
Time to ultimate height
20–50 years
Ultimate spread
2.5–4 metres
Growing conditions
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring White Green
Summer Green
Autumn Orange Purple Red Pink
Winter
Position
  • Full sun
  • Partial shade
Aspect

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

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Rosaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

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

Name status

Accepted

How to grow

Cultivation

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

Propagation

Propagate by softwood cuttings in early summer or chip budding in summer or grafting in winter

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Flower borders and beds
Pruning

Pruning group 1

Pests

May be attacked by aphids, blister mites and sawflies

Diseases

May be affected by apple canker, honey fungus and fireblight

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