American Hazelnut

American Hazelnut Corylus AmericanaThe American hazelnut (Corylus americana) is found throughout Iowa except in the northwest corner.

Habitat: Commonly found in wood edges and dry open woods.

Hardiness: Zones 4 through 9

Growth Rate: Moderate to Rapid

Mature Shape: Rounded

Height: 15 to 18 feet

Width: 10 to 12 feet

Site Requirements: American hazelnut grows moist loamy to well drained sandy and clay soils. Adaptable to adverse soil conditions.

Flowering Dates: March - May

Seed Dispersal Dates: September - October

Seed Bearing Age: 3 years

Seed Bearing Frequency: Yearly

Seed Stratification: Seeds need 5 months cold stratification at 34°F to 40°F