Juglans regia – Common Walnut Tree

Common Walnut (Juglans regia) is one of Britain's most majestic and rewarding specimen trees — a slow-growing giant that rewards patience with decades of dappled shade, striking architectural form, and an annual harvest of rich, flavoursome nuts.

Imagine the scent of warm walnut leaves on a late summer afternoon, the satisfying crack of a freshly harvested shell in autumn, and the golden canopy that transforms your garden each October. This is a tree planted not just for today, but for generations.

Key Features

• Deciduous, nut-bearing specimen tree with broad, spreading canopy
• Stunning autumn colour — foliage turns warm gold before leaf fall
• Produces edible walnuts from approximately 5–7 years after planting
• Highly architectural — ideal as a standalone specimen or focal point
• Hardy and long-lived; established trees are drought tolerant

Growing Conditions

• Position: Full sun, sheltered from late frosts
• Soil: Deep, fertile, well-drained loam; tolerates clay if not waterlogged
• Mature height: 15–25m (allow generous space)
• Hardiness: RHS H6 — fully hardy across the UK

Planting Advice

Plant in a generous hole with well-rotted organic matter. Stake firmly for the first two seasons. Avoid planting near vegetable beds — walnut roots produce juglone, which can inhibit some neighbouring plants. Water well during the first growing season to establish a strong root system.