Blackthorn (Sloe)
Prunus spinosa
Family: RosaceaeNative: Europe, Western Asia, and Northwest AfricaIdentified: Sep 6, 2025
A dense, thorny deciduous shrub or small tree, reaching 2–7 meters high, recognized by its dark bark, small oval leaves, and small, dark blue-purple fruits (sloes) that are round and plum-like.
Learn more about Blackthorn (Sloe) in the encyclopedia →Care instructions
Blackthorn is very hardy and adaptable, thriving in most soil types, including poor or heavy clay soils. It prefers full sun to partial shade and is tolerant of wind and cold. Once established, it requires minimal care, being drought-tolerant and rarely needing fertilization. Pruning can be done to maintain shape or size, especially if grown as a hedge, usually after fruiting or during dormancy.