Juglans nigra - Black walnut

Black walnut trees produce large, hard-shelled nuts with a rich flavor. They are grown for their nuts and valuable timber.

Inputs

• Hardiness zone 4¹
• Hardiness zone 5¹
• Hardiness zone 6¹
• Hardiness zone 7¹
• Hardiness zone 8¹
• Hardiness zone 9¹

Outputs

• Human food²

Type

• Tree
• Deciduous
• Juglans spp. - Walnut

Functions

• Fire resistance³⁴

Footnotes

1. Juglans nigra | Plants for a Future ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

2. Gaia’s Garden - A Guide to Home-Scale Permaculture, 2nd Edition Table 10-1 ↩

3. Fire Retardant Flora, Glen Forrest Volunteer Bush Fire Brigade, adapted from “Trees and Plants for Bush Fire Prone Areas,” Fire and Emergency Services Authority (Western Australia), 2002, listed as Black Walnut ↩

4. Juglans nigra | Fire Effects Information System, USDA Forest Service — mature trees’ thick bark and durable heartwood make them relatively resistant to fire damage ↩