American hazelnut

Corylus americana Walter

Family: Betulaceae

Pet & Human Safety

People: No hazard foundPets: Not on the ASPCA lists as we read them

Human edibility

Edible

Edible parts

nuts

Hazardous parts

Not yet checked.

Preparation

NC State says nuts may be roasted and eaten or ground into flour; no times or temperatures stated.

Hazard type

Not yet checked.

Hazard route

not applicable; no poison section on the NC State page

How complete this information is

The safety information on this page is partial. Where a source covers a point, it is shown; where none does, the page says so.

Toxic to pets

No ASPCA entry found.

No ASPCA page for hazelnut or Corylus found; NC State's page for this plant has no pet-poison section. Not listed is not the same as safe.

Look-alike warning

Could be mistaken for Plants that share its name. To tell them apart: 'Hazelnut' also names European hazelnuts/filberts (Corylus avellana types); NC State says the common name derives from an old English name for filbert..

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones: USDA 4a to 9b (NC State); 3 to 9 (UMN). The two sources differ by one zone at the cold end.
Mature size: Height 9 to 12 ft, width 8 to 13 ft (NC State); UMN gives 4 to 12 ft tall and 3 to 8 ft wide.

Soil & Drainage

Pruning & Flush Rhythm

Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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