Common Filbert
Corylus avellana
- Native to:
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Corse, Czechia-Slovakia, Denmark, East Aegean Is., Finland, Føroyar, France, Germany, Greece, Hungary, Ireland, Italy, Krym, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Poland, Portugal, Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Transcaucasus, Türkiye, Ukraine
Ivar Leidus
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Betulaceae
- Genus:
- Corylus
- Species:
- Corylus avellana
- USDA Symbol:
- COAV80
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 600 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- feb,mar,apr
- Bloom Colors:
- yellow, brown
- Food Forest:
- Contains edible parts
- 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
Cecropia moth (Hyalophora cecropia), Filbertworm (Cydia latiferreana), Io moth (Automeris io), lesser cornstalk borer (Elasmopalpus lignosellus), Pink-striped oakworm moth (Anisota virginiensis), Regal Moth (Citheronia regalis), spotted oakworm moth (Anisota stigma), Yellownecked caterpillar (Datana ministra)
Reported Fauna Sightings
Moths:Stigmella microtheriella
Garden & Ecology Notes
- Wildlife Value:
- birds, squirrels, small mammals
- Fall Color:
- yellow
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- good drainage preferred
- Moisture:
- consistently moist
- Notes:
- prefers fertile soils with organic matter
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 150–180 days
- Germination Time:
- 30–90 days
- Notes:
- Requires warm stratification (60-90 days) followed by cold stratification (90-120 days). Seeds may take two seasons to germinate if stratification is incomplete.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. * 20° x 2 weeks - 4° x 3 months - 20° x 1-6m