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PlantSnap
Plant Care
Blackthorn
(Prunus spinosa)
Also Known As
Blackthorn, Sloe, Bramble, Hawthorn, Bullace
About This Plant
Prunus spinosa is a deciduous shrub or small tree that belongs to the rose family. It is native to Europe and western Asia. The plant is known for its spiny stems, white or pink flowers, and dark blue-black fruits. The leaves are small and oval-shaped, turning yellow in the fall.
Plant Care Instructions
Outdoor Size Range
10-20 feet (3-6 meters)
Light Requirements
Blackthorn prefers full sun but can tolerate partial shade.
Humidity Needs
Blackthorn prefers average humidity levels.
Fertilizing Schedule
Blackthorn does not require fertilizer but can benefit from a balanced fertilizer in the spring.
Pruning Guidelines
Prune blackthorn in late winter or early spring to promote new growth and remove dead or diseased wood.
Common Pests and Diseases
Blackthorn is susceptible to silver leaf disease, black knot, and bacterial canker.
Indoor Size Range
N/A
Watering Schedule
The plant requires moderate watering during the growing season but can tolerate drought once established.
Temperature Range
The plant is hardy and can tolerate cold temperatures down to -20°F (-29°C).
Growing Season
Blackthorn blooms in early spring and produces fruit in the fall.
Growing Difficulty Level
Blackthorn is relatively easy to grow and maintain.
USDA Hardiness Zones
3-7
Did You Know?
Blackthorn wood is used to make walking sticks, tool handles, and traditional Irish shillelaghs.
