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Grown In The UK.
Established 1987.
UK Mainland.*
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Juglans nigra
Black Walnut Tree
Common Name: Black WalnutLatin Name: Juglans nigraSoil: Moderately fertile, well-drainedPosition: Full sunFlowering period/colour: May to June/Greenish yellow male catkins and inconspicuous female flowers.Hardiness: Fully hardyEventual height/spread: 25m/15mFruit size/colour: The fruits are oval and 3-4 centimetres across, usually in pairs. The outer slightly soft coat, which is called a husk or shuck, is shiny and green at first; it changes to dark brown when it is ripe. Inside this is one seed, the walnut, which has a white kernel when it is fresh.A handsome walnut with large, pinnate leaves and deeply furrowed bark, which is brown on a young tree and black on an old one, hence its common name. The leaves are held in handsome sprays and are a good rich shiny green, turning yellow in the autumn, though the colour may not be long-lasting.
Juglans regia
Common Walnut Tree
Common Name: Common WalnutLatin Name: Juglans regiaSoil: Moderately fertile, well-drainedPosition: Full sunFlowering period/colour: May to June/Greenish yellow male catkins and inconspicuous female flowers.Hardiness: Fully hardyEventual height/spread: 30m/15mFruit size/colour: The fruits are oval and 4-5 centimetres across. The outer slightly soft coat, which is called a husk or shuck, is shiny and green at first; it changes to dark brown when it is ripe. Inside this is one seed, the walnut, which has a white kernel when it is fresh.A fine, deciduous tree with large pinnate leaves that give off an acrid aroma when crushed. In late spring and early summer, inconspicuous flowers are produced which are followed in autumn by one of the most valuable nuts grown in Britain, walnuts. A good specimen tree for a large garden or a park.
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