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 ...

A black walnut tree planted by Frederick Law Olmsted Sr. in the late 1840s or '50s stands tall in the yard at the Olmsted-Biele House in Eltingville.

WILLOW SPRINGS, Mo. (KY3) — Investigators turned to the DNA from a tree to solve a theft of black walnut trees in the Mark Twain National Forest. In October 2019, law enforcement began ...

Missouri's tree nut industry is evolving with the introduction of "Hickman," the first patented black walnut cultivar from the University of Missouri Center for Agroforestry.