Black Walnut trees present a special challenge in the landscape because they secrete a substance that is toxic to many plants.

Black walnut trees have high levels of the toxin juglone, in all parts of the tree, including roots and leaves. Why keep black walnut trees? They are one only a few nut trees that survive in cold ...

Landscaping Under Black Walnut Trees Why won't anything grow under these trees? Black walnut trees produce a chemical called juglone as a protective response to ensure the tree's survival.

Most trees with long, flexible branches, such as apple, cherry, fig, peach, pear, plum and quince lend themselves nicely to ...

Black walnut trees emit a compound that is harmful to some plants—but not these.

Richard Martin has operated a walnut tree farm south of Gordonville for nearly 40 years. His methods are producing walnuts with higher kernel yield and larger trunks than average, and he will ...

Black walnut trees emit a compound that is harmful to some plants—but not these.