“Black walnut trees are one of the most valuable commercial wood species,” says Lisa Tadewaldt, arborist and owner of Urban Forest Pro, a certified arborist firm in Portland, Oregon.

The best quality trees are frequently found on flood free ledges just above stream banks. This species will live on poorer soils, but growth is slow and the wood quality is generally poor. The natural ...

Recommended planting density, and resulting tree spacing, for different types of black walnut planting stock. Planting Stock Type Trees per Acre Average Tree Spacing (ft ...

Recently, questions and concerns have come to the Division of Forestry from forest landowners and Consultant Foresters regarding the sale of black walnut trees now, because of Thousand Cankers Disease ...