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Prunus spinosa 'Purpurea'
  • RHS Plants for pollinators

blackthorn 'Purpurea'

A deciduous, spiny shrub or small tree, to 6m tall, with ovate leaves that emerge bright red in spring before deepening to a dark red-purple. Saucer-shaped pale pink to white flowers are borne in early to mid-spring and followed by ovoid, blue-bloomed fruits that turn a shiny black

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

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

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Rosaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Seed kernels harmful if eaten, wear gloves and other protective equipment when handling Pets (dogs, rabbits, rodents): Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Prunus can be deciduous or evergreen trees or shrubs with showy flowers in spring, and often good autumn foliage colour. Some have edible fruit in autumn, and a few species have ornamental bark

Name status

Accepted

How to grow

Cultivation

Grows in any moist well-drained soil in full sun; can be used for hedging

Propagation

Propagate by softwood cuttings in early summer

Suggested planting locations and garden types
  • Coastal
  • Wildlife gardens
  • Wildflower meadow
  • Cottage and informal garden
  • Hedging and screens
Pruning

Pruning group 1. Prune in mid-summer if silver leaf is a problem

Pests

Susceptible to damage from aphids, caterpillars and bullfinches

Diseases

May be subject to silver leaf and blossom wilt

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