The American Black Walnut is native to 32 states including Michigan. The black walnut is one of the most valuable and fully utilized natural forest trees in the United States. The flavorful nuts contain the highest protein of any other tree nut and are hand-harvested and used as a popular ingredient in both savory and sweet recipes, while the wood is used in crafting furniture and gun stocks. The husks can be used to make dyes, and the shells—the hardest of any tree nut in the world—are used in a wide range of industrial applications.
Bears up to 30 bushels of nuts once established. Truly a gourmet favorite—black walnuts have a rich flavor prized for baking, plus twice the protein of English walnuts. Trees grow up to 75 ft. tall with dark green foliage, excellent for providing shade. Dark brown wood is strong with an attractive grain, providing valuable timber.
Self-pollinating, but plant two or more for top crops.
Black walnut’s large, fern-like foliage provides light, airy shade for those grasses and ground covers not affected by juglone. In autumn, the leaves turn bright yellow, contrasting nicely with the tree’s rugged, dark bark.
Black walnuts require a deep, fertile soil with a near-neutral or slightly acidic pH. They are pretty much disease-free and are threatened by few pests,
The black walnut’s roots, which may extend 50 feet or more from the trunk, exude a natural herbicide known as juglone that inhibits many plants’ growth. For more information on black walnut toxicity, click here.
2-3 foot seedlings
Mature height 75 feet with a spread of 50 feet