Turkish Hazel (Corylus colurna)
The Turkish Hazel is a slow-growing medium-sized tree with wide conical form, 12-15m tall. The catkins appear before the leaves. The tasteless nuts ripen in September in clusters inside slit bracts.
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Appearance
The Turkish Hazel is a slow-growing medium-sized tree with wide conical form, 12-15m tall. The catkins appear before the leaves. The tasteless nuts ripen in September in clusters inside slit bracts.
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Spring
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Leaves
Wide oval leaves, 5-15cm long, 4-12cm wide, leaf stem 1.5-4.0cm long. Double-toothed edge. Leaves are dark green above and plain green below, turning a decorative golden yellow in autumn.
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Leaf upperside
Wide oval leaves, 5-15cm long, 4-12cm wide, leaf stem 1.5-4.0cm long. Double-toothed edge. Leaves are dark green above and plain green below, turning a decorative golden yellow in autumn.
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Leaf underside
Wide oval leaves, 5-15cm long, 4-12cm wide, leaf stem 1.5-4.0cm long. Double-toothed edge. Leaves are dark green above and plain green below, turning a decorative golden yellow in autumn.
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Flowers
Flowering period II-IV, decorative yellow male catkins appear before the shoots, 6-12cm long. Female flowers are inconspicuous.
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Fruits
Very thick-shelled nuts enclosed in deeply fringed husks. In ball-like clusters. Nuts are tasteless.
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Bark
Dark brown bark occasionally turns grey-brown after flaking off. Branches are olive brown, pale yellowish grey or grey-brown.
Application
Wind-break, forage for honey-bees, public areas, parks, urban areas, roadside verges, car parks, backyards, private parks, gardens
Native regions
Southern Europe, Southeastern Europe, Balkans, Mediterranean countries, Caucasus, Turkey
Location parameters
Light: sunny to semi-shady, temperature: warm to cool, soil: fresh to moist, soil structure: firm to normal, soil depth: shallow to very deep, soil quality: low to medium, pH value: 7.0 to 8.5
Demands
Robust, undemanding tree, tolerant of sun and heat, frost-hardy; grows on all neutral to chalky soils; dry to fresh; tolerates urban climates, moderately salt-tolerant, resistant to wind.
Growth
Height of growth: 12m to 20m, spread: 6m to 8m, slow growth potential, growth habits: wide, horizontal, good stem-builder, central leader
Leaves
Wide oval leaves, 5-15cm long, 4-12cm wide, leaf stem 1.5-4.0cm long. Double-toothed edge. Leaves are dark green above and plain green below, turning a decorative golden yellow in autumn.
Flowers
Flowering period II-IV, decorative yellow male catkins appear before the shoots, 6-12cm long. Female flowers are inconspicuous.
Fruits
Very thick-shelled nuts enclosed in deeply fringed husks. In ball-like clusters. Nuts are tasteless.
Bark
Dark brown bark occasionally turns grey-brown after flaking off. Branches are olive brown, pale yellowish grey or grey-brown.
Roots
Heart-rooter, intolerant of soil compaction