SelecTree: Tree Detail
Frangula alnus 'Columnaris'
Utility friendly tree.
Berries are toxic. Under right conditions may grow a bit taller. The variety 'Tallhedge' is similarily narrow and upright and excellent as a narrow hedge as well.
Trees may be referred to as male or female.
Rhamnus frangula 'Columnaris'
Additional Common Names
ALDER BUCKTHORN, TALLHEDGE BUCKTHORN
Columnar or Conical Shape.
Has Deciduous foliage.
Height: 10 - 15 feet.
Width: 10 - 15 feet.
Growth Rate: 24 Inches per Year.
Longevity 40 to 150 years.
Leaves Obovate to Oval, Dark Green, Golden or Yellow or Orange, Deciduous.
Flowers Inconspicuous. Flowers in Spring. Has either male or female reproductive parts (dioecious). Trees may be sold as male or female.
Black or Red Drupe, Small (0.25 - 0.50 inches), fruiting in Summer or Fall.
Bark Dark Brown, Fissured.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 7 and 10 - 11.
USDA Hardiness Zones 2 - 7.
Exposure Full Sun to Partial Shade.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Not Suited.
Pests & Disease Information
Susceptible to Aphids.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Poisonous Health Hazard.
Special Uses & Values
Cite this tree:
SelecTree. "Frangula alnus 'Columnaris' Tree Record." 1995-2020. Aug 14, 2020.
< https://selectree.calpoly.edu/tree-detail/frangula-alnus-columnaris >