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Corylus avellana
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Corylus avellana

Common Hazel / European Hazelnut

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Deciduous shrub/tree producing edible nuts and ornamental catkins. Prefers full sun to partial shade, well-drained soil. Requires winter dormancy for health.
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Plant Details

Common Name Common Hazel / European Hazelnut
Family Betulaceae
Genus Corylus
Species Avellana
Origin Europe, Asia Minor
Blooming Winter/Spring catkins, wind pollinated
Leaf Color Green turning yellow/gold in autumn
Sunlight Half-shade / Sun
Category Kitchen garden plants
Pet Friendly check Yes
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Care & Maintenance

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Soil

Well-drained fertile loam. pH 6.0-7.0. Avoid waterlogged conditions.

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Watering

Regular watering during establishment and dry spells. Reduce significantly in winter dormancy.

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Sunlight & Care

Full sun required for nut production and disease prevention.

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Fertilization

Balanced fertilizer in early spring before growth resumes. Avoid excess nitrogen.

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Pruning

Prune annually after harvest (winter) to remove dead wood, improve airflow, and shape.

Pest Control Aphid Caterpillar Leaf Miner Scale Insect

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 8 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
23° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
2000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 3500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
20% – 65%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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light_mode Half-shade, Sun thermostat -29-95°F water_drop 20–80%
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