Carpinus japonica (Japanese Hornbeam)


Botanical Information

FamilyBetulaceae
GenusCarpinus
Speciesjaponica
CategoryWoody
TypeTree (deciduous)
OriginJapan
Pronunciation

Details

USDA Hardiness Zone5 - 9
USDA Hardiness Ref.
Canadian Hardiness Zone6 - 8a
Canada Hardiness Ref.
RHS Hardiness ZoneH6
RHS Hardiness Ref.
Temperature (°C)-20 to -15
Height6 - 9 m
Spread6 - 9 m
GrowthMedium
Flowering PeriodApril

Description and Growing Information

General DescriptionCarpinus japonica or Japanese Hornbeam is a slow-growing small to medium-sized deciduous tree recognized by it's graceful form, interesting foliage and ornamental fruiting catkins.
LandscapeMakes an attractive, low-maintenance understory tree for shady locations.
CultivationGrows best in moist, richly organic soil but tolerates average moisture. Part to full shade, will tolerate full sun.
PestsNo serious pests or diseases to note. Infrequent occurrence of leaf spots, cankers (fungal disease) and twig blight.
Notable SpecimensWhistling Gardens, Wilsonville, Ontario, Canada.
Leaf DescriptionDoubly-toothed (smaller regular teeth on the margins of larger teeth), narrow, oval and tapering to a point at each end, dark green with prominent veining.
Flower DescriptionGreen.
Fruit DescriptionShowy, brown, in catkins (slim, cylindrical cluster of fruit closely arranged along a central stem which droops). Catkins grow up to 6 cm long. Bracts overlap to cover the fruit.

Photographs