The black walnut tree (Juglans nigra) is well-loved for its beauty and the walnuts it grows. However, the roots of this tree produce juglone, a chemical released in the soil surrounding the tree that ...

Your black walnut (Juglans nigra) is a valuable shade tree but if it overhangs your garden, the juglone concentrated in the roots, buds, and nut hulls acts as a “natural herbicide,” eliminating ...