Black Walnut trees are valuable for their beautiful wood. Bobʼs dad sold their big Black Walnuts when Bob was a kid. Tune in to find out all about this amazing tree! Related episode: Fall Webworms in Summer (http://natureguys.org/fall-webworms/) Our sources for this episode include: A Wild Crop and Backyard Harvest https://www.americanforests.org/magazine/article/a-wild-crop-and-backyard-harvest/ Eastern Black Walnut https://naturewalk.yale.edu/trees/juglandaceae/juglans-nigra/eastern-black-walnut-59 Black Walnut Tree https://www.wildernesscollege.com/black-walnut-tree.html Mast Tree Network http://www.mast-producing-trees.org/2009/11/native-walnuts-of-north-america/