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Woody > Celtis > Celtis occidentalis > Celtis occidentalis

Celtis occidentalis


Common Hackberry




Origin:  Quebec to Manitoba, south to North Carolina, Alabama, Georgia and Oklahoma.
Family
Cannabaceae (Ulmaceae)
Genus
Celtis
Species
occidentalis
Category
Woody
Type
Tree (deciduous)
Pronunciation
USDA Hardiness Zone
3 - 9
Canadian Hardiness Zone
2
RHS Hardiness Zone
H7
Temperature (°C)
-40
Temperature (°F)
-40
Height
20 m
Spread
15 m
Photographs
Description and Growing Information
Flowering Period
May
General Description
A native North American tree with cork like bark that is very urban tolerant.
Landscape
City and courtyard gardens, urban landscapes, parks, streets, informal gardens, mass plantings, large properties, cottages or as a specimen.
Cultivation
Prefers rich, moist soil but grows in dry, heavy, sandy and rocky soils. Tolerates wind, full sun, dry and alkaline soil conditions.
Shape
Fine branch habit – broad top with ascending arching branches.
Growth
Fast
Pests
Witches broom, leaf spots, powdery mildew. The leaves are prone in our Ontario environment to severe infestations of leaf galls.
Habitat
Flood plains, along roadsides, open fields and fence rows.
Bark/Stem Description
Grey in colour with corky warts or ridges.
Flower/Leaf Bud Description
Small imbricate buds, 5 mm long, chestnut brown, ovate with sharp point.
Leaf Description
Alternate, simple, ovate leaves around 5 - 12.5 cm long.
Flower Description
Polygamo-monoecious staminate flowers.
Fruit Description
Fleshy yellow fruit, borne on a 2.5 - 5 cm long pedicel that ripens in September.
Colour Description
Dull green in summer turning yellow-green in autumn; not impressive.
Texture Description
Medium-coarse.
Notable Specimens
Weldon Library, University of Western Ontario, London, Ontario, Canada. Joany's Woods, West Williams, Middlesex County, Ontario, Canada.
Propagation
Seed.
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