About
Juglans regia, commonly known as the English walnut, is a medium-sized deciduous tree characterized by its wide crown. The leaves consist of 5 to 7 large, oblong leaflets that release a pleasant aroma when crushed. Male catkins can reach lengths of up to 10 cm. The tree produces green, round fruits approximately 5 cm in diameter, each containing an edible kernel.
About the genus
Juglans are trees that shed their leaves in autumn, characterized by their compound leaves. They produce subtle flowers arranged in catkins, which are succeeded by typically edible nuts.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East-facing, South-facing, North-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Trees
- Habit
- Spreading branched
- Foliage
- Deciduous
- Height
- Higher than 12 metres
- Spread
- wider than 8 metres
- Time to full height
- 20-50 years
- Native to
- Europe to C Asia
Care notes
- Cultivation
- Grow as a specimen tree in any well-drained or moist but well-drained soil in full sun
- Pruning
- Pruning group 1
- Propagation
- Propagate by seed or grafting
- Pest resistance
- May be susceptible to aphids and walnut blister mite
- Disease resistance
- May be susceptible to walnut leaf spot, walnut leaf blotch, honey fungus and coral spot