Prunus spinosa, the blackthorn or sloe, is a spiny deciduous shrub or small tree from the rose family, native to Europe and western Asia. It is grown mainly as a hardy hedge and for its astringent sloe fruit, which is picked after frost for preserves and gin.
Family
Rosaceae (Rose family)
Grows as
Tree
Light
Full sun, Part shade
Water
Water young plants in dry spells until established; mature plants need little extra water.
Soil
Tolerates most soils, including heavy clay, chalk and poor ground, if well drained.
Temperature
Fully hardy to well below freezing; no protection needed.
How easy
Easy
Safety
Mildly toxic: The seed inside the stone contains trace hydrogen cyanide; crushing or chewing the stone can release it, while the flesh is eaten in preserves.. Toxic to cats and dogs (ASPCA).
Edible
Yes, some parts
Native range
Europe to C. Asia and Iran, NW. Africa
Climate
temperate
About
Prunus spinosa, called blackthorn or sloe, is a species of flowering plant in the rose family, Rosaceae. It is native to Europe and West Asia, and has been naturalised in parts of North America.
The fruits are used to make sloe gin in Great Britain and patxaran in the Basque Country. The wood is used to make walking sticks, including the Irish shillelagh.
Safety
Like many other stone fruit with stones, the seed in the stone contains trace amounts of hydrogen cyanide.
Where it grows
P. spinosa is native to Europe, western Asia, and locally in northwest Africa. It is also locally naturalised in Tasmania and eastern North America.
Uses
The shrub, with its long, sharp thorns, is traditionally used in Britain and other parts of northern Europe to make a cattle-proof hedge.
Text excerpted from the Wikipedia article Prunus spinosa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.