Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut tree family, native to central and eastern North America, growing mostly in riparian zones. Black walnut is important as a wood product, producing a warm brown color that is durable and easily worked. Walnut seeds are also cultivated for their distinctive taste.
Black walnut treed grow up to 100-130 ft tall and fruiting may begin when the tree is 4–6 years old, but it will take around 20 years for large crops to be realized. Total lifespan of the eastern black walnut is about 130 years (but can live many years longer), making it a wonderful multi-generational producer of walnuts.
Nutrition from the black walnut seeds: 619 calories per 100g of black walnuts. 59g fat, 24g protein, and 10g carbohydrates.