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treePerennialEdible
Walnut
Juglans regia
Also known as: English walnut, Persian walnut, walnut tree
Large shade tree producing rich flavored nuts in hard shells. Produces juglone which inhibits nearby plants. Very long-lived.
Growing Requirements
SunFull Sun
WaterMedium
Soil Type
Soil Drainage
Soil pH
Plant Spacing360–600″
Row Spacing360–600″
Planting Depth—
Height480–960″
Spread360–600″
✗ Not Container Friendly✗ Not Raised Bed Friendly
Planting Schedule
Transplant Outdoors
0–9 weeks after last frost
Days to Harvest
1460–2190 days
Zone Suitability
USDA Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Zones 5–9
Can overwinter in appropriate zones
Perennial in zones 5–9
Produces juglone — toxic to tomatoes, peppers, and many plants. Keep 50+ feet from gardens. Most need cross-pollination. 4–6 years to first crop.
Companion Plants
No companion data available for this plant yet.