tree, shrub

Frangula alnus 'Columnaris' | Alder Buckthorn

(Rhamnus frangula)

This Buckthorn is most often grown as a vertical shrub. Leaves are glossy on slender branches. Red berries in summer turn black as they age. Canopy coverage: 28 square feet.

Water Requirement: low

Sun Exposure: full sun

Cold Hardiness: cold hardy to -30F

Growth Rate: moderate

Height: 12 feet high

Width: 6 feet wide

Deciduous

Foliage Color: dark green

Flower Color: white, green

Flower Season: spring