Common walnut (Juglans regia)
The Common Walnut is a medium-sized, short-stemmed tree which grows slowly and often askew. The leaves sprout very late and fall early. Decorative green catkins. The brown nuts are 2-3cm large and very tasty.
-
Appearance
The Common Walnut is a medium-sized, short-stemmed tree which grows slowly and often askew. The leaves sprout very late and fall early. Decorative green catkins. The brown nuts are 2-3cm large and very tasty.
-
Autumn
-
Leaves
Odd-pinnate leaves, 20-30cm long, 15-25cm wide. Ovate to elliptical leaflets. Shoots may be damaged by late frosts. Leaves are glossy dark green above, pale green below, turning yellow in autumn. Aromatic fragrance.
-
Leaf upperside
Odd-pinnate leaves, 20-30cm long, 15-25cm wide. Ovate to elliptical leaflets. Shoots may be damaged by late frosts. Leaves are glossy dark green above, pale green below, turning yellow in autumn. Aromatic fragrance.
-
Leaf underside
Odd-pinnate leaves, 20-30cm long, 15-25cm wide. Ovate to elliptical leaflets. Shoots may be damaged by late frosts. Leaves are glossy dark green above, pale green below, turning yellow in autumn. Aromatic fragrance.
-
Flowers
Flowering period IV-V, male catkins are green-brown, female flowers inconspicuous.
-
Fruits
Thin-shelled nut with two thick-lipped edges. Surrounded by thick, fleshy, leathery, smooth outer shell. The genuine walnut.
-
Bark
Pale grey-brown bark, occasionally black-brown, smooth when young, forming shallow furrows with age. Branches are glossy brown.
Application
Open country, open fields, wind-break, parks, urban areas, roadside verges, pedestrian precincts, private parks, gardens, verandas
Native regions
Southern Europe, Southeastern Europe, Middle East, Asia Minor, Himalaya
Location parameters
Light: sunny to semi-shady, temperature: warm to normal, soil: fresh to moist, soil structure: firm to loose, soil depth: deep, soil quality: medium to high, pH value: 6.0 to 8.0
Demands
Sun to slight shade, heat-tolerant, likes warmth, half-hardy; moderately dry to moist, slightly acid to highly alkaline, well-drained, nutrient-rich substrates; tolerates urban climates, moderately salt-tolerant
Growth
Height of growth: 15m to 30m, spread: 10m to 15m, growth habits: spreading, open crown
Leaves
Odd-pinnate leaves, 20-30cm long, 15-25cm wide. Ovate to elliptical leaflets. Shoots may be damaged by late frosts. Leaves are glossy dark green above, pale green below, turning yellow in autumn. Aromatic fragrance.
Flowers
Flowering period IV-V, male catkins are green-brown, female flowers inconspicuous.
Fruits
Thin-shelled nut with two thick-lipped edges. Surrounded by thick, fleshy, leathery, smooth outer shell. The genuine walnut.
Bark
Pale grey-brown bark, occasionally black-brown, smooth when young, forming shallow furrows with age. Branches are glossy brown.
Roots
Deep-rooting, tolerates flooding