Sorbus bulleyana

RHS Plant Profile
Bulley's mountain ash

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Other common names

Bulley's whitebeam

Trees
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A small to mid-sized deciduous tree, with leaves divided into widely spaced, oval-shaped dark green leaflets with toothed edges at the tips. Leaves turn yellow, red and bronze in autumn. Hanging clusters of white flowers in spring are followed by white berries flushed with pink in late summer and autumn

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

4-8 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
10–20 years
Max Spread
2.5-4 metres
Max Height
4-8 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Rosaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright, Spreading branched
Potentially harmful
Fruit are ornamentalnot to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamentalnot to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
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
Correct

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained, acidic to neutral soil in sun or light dappled shade. See tree cultivation for further advice

Propagation

Propagate by seed, softwood cuttings or grafting

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance

Pruning

Pruning group 1

Pests

May be susceptible to aphids, scale insects, pear blister mite, red spider mite and sawfly larvae

Diseases

May be susceptible to fireblight, apple canker, silver leaf and honey fungus