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 ...

Plants have evolved in some pretty interesting ways to ensure their own existence. One tactic that fascinates me is allelopathy, which means that a plant can harm another with chemicals it produces. A ...

Expert pruning of apples, pears, climbing roses, maples, hornbeams and other key plants can improve shape, encourage healthy ...

Question: I have Black Walnut trees in my yard and heard they are toxic to other plants, should I be concerned? Answer: If you want to successfully grow plants near a Black Walnut, then yes, you ...

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 ...