Cotoneaster 'Cornubia'

RHS Plant Profile
cotoneaster 'Cornubia'

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cotoneaster 'Cornubia' RHS 2002

Synonyms

Cotoneaster × watereri 'Cornubia'
Cotoneaster frigidus 'Cornubia'
Cotoneaster × watereri 'Cornubia' Exbury form

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A vigorous, arching semi-evergreen shrub or tree to 6m in height, with narrow dark green leaves to 12cm in length. White summer flowers in clusters are followed by heavy trusses of large, bright red berries

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

4-8 metres

Max Spread

4-8 metres

Size

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

Growing Conditions

Chalk Clay Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or North–facing or East–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
Semi evergreen
Habit
Spreading branched
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Cotoneaster can be deciduous or evergreen shrubs or small trees, with simple, entire leaves and clusters of small white or pink flowers in spring and summer, followed by showy red, purple or black berries
Name Status
Accepted

How to Grow

Cultivation

Grow in any well-drained soil in full sun or partial shade, with shelter from cold winds

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Low Maintenance
  • Hedging and screens

Pruning

Pruning group 1

Pests

May be susceptible to aphids, woolly aphid, scale insects and cotoneaster webber caterpillar

Diseases

May be susceptible to fire blight and honey fungus