Appalachian Tree Species

Black Walnut

Juglans nigraHardwood

Black Walnut is a native hardwood with compound leaves, large husked nuts and brown heartwood. Its wood is used for furniture, cabinetry and interior woodwork.

Overview

This profile follows Juglans nigra, the Black Walnut of eastern and central North America. For a wood buyer, understanding the tree and its wood is a useful starting point; evaluating a particular log still depends on its size, condition and the intended use.

Tree & Region

Where It Grows

Black Walnut is native across much of the central and eastern United States and reaches southern Ontario. Kentucky is within its native range.

It favors deep, fertile soils that hold moisture but drain well. In the Appalachians, coves, well-drained bottoms and lower slopes can provide suitable sites. Wet ground and dry, shallow soils are less favorable.

Identifying the Tree

A mature Black Walnut is a large deciduous tree, often with an open, rounded crown. Its outline and branching vary with the space and conditions in which it grows.

Foliage

The leaves alternate along the twig. Each is a compound leaf: many pointed leaflets with finely toothed edges are arranged along a central stalk.

Bark

Mature bark is dark brown, thick and deeply ridged, with furrows that can form a rough diamond pattern.

Fruit, Seeds & Cones

The rounded fruit has a fleshy yellow-green husk around a hard-shelled nut. Fruits mature in fall; the husk can leave a dark stain when handled.

The Wood

Appearance and Grain

The heartwood ranges from light to dark brown, contrasting with nearly white sapwood. That contrast matters when selecting material for a visible surface.

Black Walnut is usually straight-grained. Grain pattern and the contrast between heartwood and sapwood give individual boards their character.

Practical Characteristics

The wood generally works readily with tools and is well suited to natural finishes. These characteristics help explain its established use in furniture and interior woodwork.

Black Walnut is described as stable in use, but it still responds to moisture. Drying and the moisture conditions of the finished setting need to suit the application; stable does not mean that a board cannot shrink or swell.

Common Uses

Documented uses include furniture, cabinets, architectural woodwork, decorative panels and gunstocks. Black Walnut is also used for veneer. Veneer is a use of selected material, not a quality that can be assumed from the species name.

KY Wood Products

Black Walnut in Our Region

KY Wood Products welcomes commercial Black Walnut log inquiries, including inquiries from overseas hardwood-log buyers. Start with the acceptable diameter and length ranges, quality requirements and intended application.

Finding Black Walnut in the region does not establish what we can supply for a particular order. Sourcing and suitability need to be discussed against the buyer’s requirements.

Hardwood Logs

Discuss Black Walnut logs against your species, size-range and quality requirements. Our Hardwood Logs page explains the commercial inquiry process.

Explore Hardwood Logs