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Common Buckthorn Common Buckthorn
Scientific Name: Rhamnus cathartica L.
Family: Rhamnaceae
Common Buckthorn
Common Buckthorn (Rhamnus  cathartica)
Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 502.
Recommended Temperature Zone:
sunset: 1-3
USDA: 3-7

Sun Exposure: Full sun

Origin: Eurasia

Growth Habits: Deciduous small tree or large shrub, up to 22 feet in height (6.6 m); trunk up to 10 inches wide (25 cm); gray to brown bark, rough textured when mature; twigs often have a spine at their tip; glossy dark green leaves, 1.5 to 3 inches long (4.5-7.5 cm)

Watering Needs: Little water

Propagation: Seeds

The Common Buckthorn is considered an invasive weed in some states.
The fruit contains a laxative.
The common buckthorn is easy to transplant and can be pruned, making it a good plant for hedges.

Blooming Habits:
Dioecious, greenish yellow, 4-petaled flowers in dense clusters of 2 to 6. It flowers in late spring.

Fruiting Habits:
The Common Buckthorn has small black fruits about 0.25 inch across (6 mm) containing 3 to 4 seeds, in the fall.

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