About
Juglans cinerea, the butternut or white walnut, is a broad-crowned, deciduous tree reaching 15�18 m at maturity with deeply furrowed, grey-brown bark and large, pinnate leaves of 11�17 lanceolate leaflets, emerging coppery in spring before turning yellow in autumn. Edible walnuts are produced in elongated, sticky, green husks from quite a young age. A handsome and productive walnut for a large garden.
About the genus
Juglans, the walnuts, are large, deciduous trees with aromatic, pinnate leaves, insignificant flowers in catkins and edible or ornamental nuts enclosed in fleshy green husks. Grown as specimen trees and nut crops.
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, North-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeFruit Edible, Trees
HabitSpreading branched
FoliageDeciduous
HeightHigher than 12 metres
Spread4-8 metres
Time to full height20-50 years
Suggested usesArchitectural, Wildlife gardens
Native toEastern N America
Care notes
CultivationGrow in any deep, fertile soil. Suited to very large gardens or parks. For nut production, more than one tree is needed for cross pollination
PruningPruning group 1
PropagationPropagate by grafting
Pest resistanceMay be susceptible to aphids and walnut blister mites
Disease resistanceMay be susceptible to walnut leaf spot, walnut leaf blotch, honey fungus and coral spot