Corylus americana (American Hazelnut)


Botanical Information

FamilyBetulaceae
GenusCorylus
Speciesamericana
TypeShrub (deciduous)
OriginCanada and the United States of America.
Ethnobotanical Uses
Disclaimer
Nuts are edible, can be eaten raw, roasted or ground into flower.

Details

USDA Hardiness Zone4 - 9
USDA Hardiness Ref.
Canadian Hardiness Zone2a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H3
RHS Hardiness Ref.
Temperature (°C)(-32) - (-1)
Temperature (°F)(-25) - 30
Height3-5 m
Spread2-4 m
Flowering PeriodMarch, April

Description and Growing Information

General DescriptionThis species has been placed on the IUCN Red List as least concern.
LandscapeOpen woodland gardens, as a screen or as a shrub rear boarder.
CultivationMedium, well drained soil in full sun to partial shade. Root sucker removal will aid in the plants appearance.
PestsSusceptible to leaf spots, blight and crown gall. Pests include scale, leafhoppers and caterpillars.
HabitatDry or moist woodlands, valleys and prairies.
Bark/Stem DescriptionSmooth, greyish brown in colour.
Leaf DescriptionDark green, ovate and double toothed. Leaves change to a variety of colour combinations during autumn; orange, rose, purplish red, yellow and green to a dull yellowish green.
Flower DescriptionNuts are enclosed in a hairy husk, green when young browning as they mature.

Photographs