Most maples except silver maple (Acer spp).It takes several years for the juglone to be leached from the soil.įor vegetables and small shrubs, planting in a raised bed can mitigate the juglone toxicity, if all leaves, nuts, and hulls from black walnuts are kept out of the surface of the raised bed.ģ0 Plants That Will Grow near Black Walnut Trees ![]() These plants should also be avoided if there has been a black walnut planted in the area in the recent past. As the mature roots die back they will leave juglone in the soil. Juglone Sensitive Plants to Avoid in zone 3ĭon’t plant these plants within 50 feet of a mature black walnut tree, or within the drip line of an immature black walnut tree. Since black walnuts take a long time to mature, some shorter-lived trees might grow well, until the juglone from the black walnut reaches them, giving you a succession of plants in your garden. ![]() If you accidentally plant the wrong plant near a black walnut, simply transplant it in the spring or fall, when you notice that it’s stressed. With the short zone 3 growing seasons, you don’t want to waste your space on plants that need to be babied. While there are a few trees and shrubs that are sensitive to juglone toxicity there are many that are tolerant. Black walnut sap can be boiled down into black walnut syrup for a value-added product.The roots of walnut trees draw up nutrients from deep in the subsoil, bringing these to the surface where other plants can benefit.Walnut trees are long-lived and provide shade and habitat for wildlife.The hulls, leaves, and twigs produce a dark brown natural dye that is colour-fast.The nutmeats are nutritious and considered a superfood.The nutmeats are high in edible oil, which is useful for cooking, woodworking, and cosmetics.The leaves, hulls, and stems of black walnut are rich in iodine and highly medicinal. ![]()
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