🌰 English Walnut Tree
Juglans regia
Tree
☀️ Sun
Full sun (6+ hours)
💧 Water
Low to moderate; deep taproot once established
🗺️ Zones
5–9 (Carpathian varieties to Zone 4)
📏 Spacing
40–60 ft
📐 Height
40–60 ft
🧪 Soil pH
6.0–7.5
⏱️ Maturity
4–7 years (grafted); 10–15 years (seedling)
Key:🤝 Grows well together❌ Keep apart☀️ Sun needs💧 Water🗺️ Hardiness zone
🤝 Companions (5)
🤝 Black Locust
Good companion — English Walnut Tree and Black Locust grow well together.
🤝 Clover
Good companion — English Walnut Tree and Clover grow well together.
Good companion — English Walnut Tree and Comfrey grow well together.
Good companion — English Walnut Tree and Elderberry grow well together.
🤝 Most grasses
Good companion — English Walnut Tree and Most grasses grow well together.
⚠️ Keep Apart (5)
⚠️ Apple
Keep apart — these plants do not grow well together.
Keep apart — these plants do not grow well together.
Keep apart — these plants do not grow well together.
⚠️ Azalea
Keep apart — these plants do not grow well together.
⚠️ Rhododendron
Keep apart — these plants do not grow well together.
📝 Growing Notes
English walnut produces less juglone than black walnut but still presents allelopathic challenges for sensitive plants. Its thin-shelled nuts are commercially valuable and far easier to crack than black walnut. Carpathian-strain varieties are significantly more cold-hardy and are the best choice for zones 4–5.