Hazelnut (Ennis)
Corylus avellana 'Ennis'
A late-season European hazelnut variety prized for producing large, round nuts with excellent flavor and easy shell removal. Developed in Oregon, Ennis is one of the most reliable producers for home orchards, consistently delivering heavy crops of premium quality nuts. This variety ripens later than most hazelnuts, extending the harvest season into October.
Harvest
150-170d
Days to harvest
Sun
Full sun
Zones
4–8
USDA hardiness
Height
12-20 feet
Planting Timeline
Showing dates for Hazelnut (Ennis) in USDA Zone 7
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Hazelnut (Ennis) · Zones 4–8
Growing Details
Zone-by-Zone Planting Calendar
Complete Growing Guide
Soil: High Organic Matter, Loam (Silt), Shallow Rocky. Soil pH: Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 12 ft. 0 in. - 20 ft. 0 in.. Spread: 8 ft. 0 in. - 15 ft. 0 in.. Spacing: 6-feet-12 feet. Maintenance: Low. Propagation: Layering, Root Cutting, Seed. Regions: Coastal, Mountains, Piedmont.
Harvesting
The fruit, in the form of a nut, is enclosed by a short leafy involucre, or husk. They appear in clusters of 1 to 5 and are released from the husk in late summer when the nut has ripened. The rounded nuts are about 1" in diameter.
Color: Brown/Copper, Gold/Yellow. Type: Nut. Length: 1-3 inches. Width: 1-3 inches.
Garden value: Edible, Showy
Harvest time: Fall, Summer
Bloom time: Spring
Edibility: Hazelnuts (cobnuts) are edible, and this plant is used in the production of these nuts.
History & Origin
Origin: Europe and Western Asia
Advantages
- +Attracts: Songbirds
- +Wildlife value: Birds, squirrels, and field mice often eat the nuts. Bees are attracted to the pollen.
- +Edible: Hazelnuts (cobnuts) are edible, and this plant is used in the production of these nuts.
- +Low maintenance
Companion Plants
Plant Together
Comfrey
Deep taproot brings nutrients to surface, leaves make excellent mulch and fertilizer
Clover
Nitrogen-fixing legume improves soil fertility and provides ground cover
Chives
Repels aphids and other pests while attracting beneficial insects
Lavender
Deters rodents and insects while attracting pollinators essential for nut production
Elderberry
Compatible growth habit, attracts beneficial insects, and provides wildlife habitat
Yarrow
Accumulates nutrients, improves soil health, and attracts beneficial predatory insects
Wild Bergamot
Attracts native pollinators and beneficial insects while tolerating partial shade
Fescue Grass
Provides erosion control and living mulch without competing heavily for nutrients
Keep Apart
Black Walnut
Produces juglone which is toxic to many plants and can inhibit hazelnut growth
Pine Trees
Acidifies soil significantly and creates dense shade that reduces nut production
Fennel
Allelopathic compounds inhibit growth of nearby plants including young hazelnut trees
Nutrition Facts
Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #2515375)
Pests & Disease Resistance
Resistance
Susceptible to eastern filbert blight, good resistance to bacterial blight
Common Pests
Filbert worm, aphids, spider mites, filbert weevil
Diseases
Eastern filbert blight, bacterial blight, crown rot