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The 'Cosford' Hazelnut (Corylus avellana) is a highly productive, deciduous small tree or large shrub celebrated for producing sweet, high-quality nuts encased in an exceptionally thin, easy-to-crack shell. Often referred to alternatingly as a cobnut, it functions as an excellent dual-purpose addition to home orchards, offering both a reliable autumn harvest and distinct seasonal ornamentation. While Corylus avellana produces both male (catkins) and female flowers on the same plant, they rarely bloom at the identical time. Because hazelnuts are wind-pollinated and predominantly self-sterile, you must plant a compatible companion variety nearby to guarantee a successful nut crop.
Fruit Colour: Brown, hard, woody shell (outer wall of the fruit called the pericarp). Nut meat is milk-coloured.
Fruit Shape: Round
Fruit Size: Medium-sized nut, 2.5 grams
Flavour: Raw: Crisp, creamy, and mildly sweet with a milky texture. Roasted: The flavor peaks when toasted and deepens the sweetness, intensifies the buttery notes, and makes the texture incredibly crunchy.
Fruit Season: Harvest window is late February to April.
Cropping Habit: Heavy, reliable, and relatively early nut production.
Best Uses: Raw eating, roasting.
Light requirement: Full sun to partial shade. In regions with scorching summers, provide a sheltered position away from hot afternoon sun and drying winds.
Water requirement: Moderate
Watering frequency: Water deeply during establishment and keep soil evenly moist.
Soil: Well-drained, well-worked, and nutrient-rich soil. t.
Skill level: Beginner
Growth rate: Moderate
Suitable for container gardens:
Mature Height: 4-5m
Mature Width: 3-4m
Seasonality: Deciduous
Drought Tolerant: Moderate once est.
Frost Tolerant: Requires cold, moist winters to satisfy chill hour requirements for bud break.
Wind Tolerant: Moderate once est.
Leaf colour: Features lush green, serrated spring and summer foliage that shifts to brilliant golden yellow shades in Autumn.
Leaf Variegation pattern: No
Size of leaf: Mature leaves are quite large and broad, typically measuring 6-12cm long and nearly as wide 5-10cm. They are distinctly rounded to broadly ovate (heart-shaped) with a sharply pointed tip.
The 'Cosford' Hazelnut (Corylus avellana) is a highly productive, deciduous small tree or large shrub celebrated for producing sweet, high-quality nuts encased in an exceptionally thin, easy-to-crack shell. Often referred to alternatingly as a cobnut, it functions as an excellent dual-purpose addition to home orchards, offering both a reliable autumn harvest and distinct seasonal ornamentation. While Corylus avellana produces both male (catkins) and female flowers on the same plant, they rarely bloom at the identical time. Because hazelnuts are wind-pollinated and predominantly self-sterile, you must plant a compatible companion variety nearby to guarantee a successful nut crop.
Fruit Colour: Brown, hard, woody shell (outer wall of the fruit called the pericarp). Nut meat is milk-coloured.
Fruit Shape: Round
Fruit Size: Medium-sized nut, 2.5 grams
Flavour: Raw: Crisp, creamy, and mildly sweet with a milky texture. Roasted: The flavor peaks when toasted and deepens the sweetness, intensifies the buttery notes, and makes the texture incredibly crunchy.
Fruit Season: Harvest window is late February to April.
Cropping Habit: Heavy, reliable, and relatively early nut production.
Best Uses: Raw eating, roasting.
Light requirement: Full sun to partial shade. In regions with scorching summers, provide a sheltered position away from hot afternoon sun and drying winds.
Water requirement: Moderate
Watering frequency: Water deeply during establishment and keep soil evenly moist.
Soil: Well-drained, well-worked, and nutrient-rich soil. t.
Skill level: Beginner
Growth rate: Moderate
Suitable for container gardens:
Mature Height: 4-5m
Mature Width: 3-4m
Seasonality: Deciduous
Drought Tolerant: Moderate once est.
Frost Tolerant: Requires cold, moist winters to satisfy chill hour requirements for bud break.
Wind Tolerant: Moderate once est.
Leaf colour: Features lush green, serrated spring and summer foliage that shifts to brilliant golden yellow shades in Autumn.
Leaf Variegation pattern: No
Size of leaf: Mature leaves are quite large and broad, typically measuring 6-12cm long and nearly as wide 5-10cm. They are distinctly rounded to broadly ovate (heart-shaped) with a sharply pointed tip.