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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.

Walnut

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 59

Can overwinter in appropriate zones

Perennial in zones 59

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.