Black Walnut (Juglans nigra)
The Black Walnut (Juglans nigra) is a large stately upright tree growing to 30 m tall with a broad crown and a stout trunk. This native of the eastern United States has large deciduous leaves that are glossy green and aromatic. The nuts are edible (although harder to break open than the Common Walnut Juglans regia) and can be used for dyeing textiles. The bark is deeply ridged and grey-black. The brown corrugated nut ripens in autumn and is covered in a brown-green husk.
• Size: 30 metres tall x 20 metres wide depending on growing conditions
• Uses: specimen tree, ornamental, shade tree, timber, dyeing, eating
• Harvest: autumn
• Comment: Produces a substance that can be toxic to horses (but not cattle) and can inhibit the growth of some plants under and around it. The wood of the Black Walnut is durable and highly valued for its use in the timber industry including for furniture.