Hazelnut (Barcelona)
Corylus avellana 'Barcelona'
The most widely planted hazelnut variety in North America, Barcelona produces large, flavorful nuts with excellent kernel quality. This reliable producer is known for its consistent heavy yields and good cold hardiness, making it an ideal choice for home orchardists. The nuts have a rich, buttery flavor perfect for eating fresh or using in baking.
Harvest
120-150d
Days to harvest
Sun
Full sun
Zones
4–8
USDA hardiness
Height
12-20 feet
Planting Timeline
Showing dates for Hazelnut (Barcelona) in USDA Zone 7
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Hazelnut (Barcelona) · 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 roots bring nutrients to surface, leaves make excellent mulch and fertilizer
Clover
Fixes nitrogen in soil, provides ground cover and attracts beneficial insects
Chives
Repels aphids and other pests while attracting beneficial pollinators
Lavender
Deters pests like moths and beetles, attracts pollinators, and tolerates similar soil conditions
Marigolds
Repel nematodes and aphids, attract beneficial insects for pest control
Nasturtiums
Act as trap crop for aphids and cucumber beetles, edible flowers attract pollinators
Wild Garlic
Natural fungicide properties help prevent fungal diseases, repels various pests
Yarrow
Attracts beneficial insects, improves soil health, and may enhance disease resistance
Keep Apart
Black Walnut
Produces juglone which is toxic to hazelnuts and inhibits their growth
Fennel
Allelopathic properties inhibit growth of nearby plants including nut trees
Pine Trees
Acidify soil significantly which hazelnuts cannot tolerate, compete for nutrients
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 in some regions
Common Pests
Filbert aphid, mites, filbert weevil
Diseases
Eastern Filbert Blight, bacterial blight