Large trees can create a quiet shady spot, but their roots can pose problems in your yard. Follow these recommendations to ...

Landscaping under any tree can be challenging, thanks to the dense shade cast by the branches and the abundance of thick roots in the soil. But black walnut trees (Juglans nigra) seem to be in a ...

Spring gardening season is just around the corner. As you wait, you may have questions. For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension ...

Urban dwellers either praise or curse the black walnut (Juglans nigra). Some find the tree troublesome because of the nuts they drop, the juglone (a natural herbicide) secreted into the soil to kill ...