Beaked Hazelnut
Corylus cornuta
- Native to:
- Canada, Prince Edward I., United States
iNaturalist: © bryanpfeiffer (iNaturalist #72030942)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Betulaceae
- Genus:
- Corylus
- Species:
- Corylus cornuta
- USDA Symbol:
- COCO6
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 450 cm
- Light Requirements:
- Full Sun,Part Shade,Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Caterpillars:
- ★★★☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Host Plant for Caterpillars
Acrobasis normella, Acronicta increta, Banded Tussock Moth (Halysidota tessellaris), Bucculatrix callistricha, Bucculatrix fugitans, Cecropia moth (Hyalophora cecropia), cymatophoroides false owlet moth (Pseudothyatira cymatophoroides), early zanclognatha (Zanclognatha cruralis), eyed baileya moth (Baileya ophthalmica), Gypsy moth (Lymantria dispar), Io moth (Automeris io), Norman's Quaker (Crocigrapha normani), Peppered Moth (Biston betularia), spotted oakworm moth (Anisota stigma), Zale phaeocapna, Early Hairstreak (Erora laeta)
Reported Fauna Sightings
Moths:American Dagger Moth (Acronicta americana), Banded Tussock Moth (Halysidota tessellaris), Cameraria corylisella, Ectoedemia quadrinotata, Ectoedemia virgulae, Hickory Tussock Moth (Lophocampa caryae), maple leafcutter moth (Paraclemensia acerifoliella), Phyllonorycter intermixta, Stigmella microtheriella
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals, squirrels
- Fall Color:
- yellow
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from the root crown following fire. Common in fire-maintained forests and woodland edges.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- prefers forested areas with organic matter
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 60–120 days
- Germination Time:
- 30–180 days
- Notes:
- Requires warm stratification (60-90 days) followed by cold stratification (90-120 days). Germination can be erratic and may take up to two years.
The above propagation data sourced from Claude AI
Pre-treatment: For seeds: Cold moist stratification for 60 to 120 days or soaking fresh seed for 24 hours, discarding floaters, and placing viable seeds in the refrigerator with dry perlite. For cuttings: Dip in a mild bleach solution for 30 seconds and treat with Hormex rooting powder.
Establishment: Seeds are recalcitrant and must not dry out after collection. Cuttings should have at least 3 nodes. There is a variation in the pre-treatment and establishment protocols for seeds and cuttings.
Source: npn.rngr.net