About
Prunus spinosa, the blackthorn, is a small, thorny, deciduous tree with dark-green, ovate leaves and small, white flowers in early spring, followed by oval, bloomy, black fruits (sloes) 1.5 cm across. An ornamental and wildlife-rich native shrub for a hedge or wild garden. Can produce suckers � removal advised unless a thicket is desired.
About the genus
Prunus are deciduous or evergreen trees or shrubs producing showy flowers in spring, often with good autumn foliage colour. Some species have edible fruit in autumn and a few have ornamental bark. Among the most popular of all flowering trees and shrubs.
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectWest-facing, South-facing, North-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeTrees
HabitBushy
FoliageDeciduous
Height2.5-4 metres
Spread2.5-4 metres
Time to full height20-50 years
Suggested usesCoastal, Cottage and informal garden, Wildflower meadow, Wildlife gardens
Native toEurope to Russia Med.
ToxicitySeed 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
Care notes
CultivationEasy to grow native shrub or small tree, that can be used for hedging. Grows in any moist well-drained soil in full sun
PruningPruning group 1. Prune in mid-summer if silver leaf is a problem
PropagationPropagate by softwood cuttings in early summer with bottom heat or propagate by seed
Pest resistanceSusceptible to damage from aphids, caterpillars and bullfinches
Disease resistanceMay be susceptible to silver leaf and blossom wilt. High Risk Host for Xylella fastidiosa