Those interested in planting black walnuts have lacked information about the best cultivars available for planting in Iowa. This project initiated long-term studies of several varieties of black walnut trees to determine the best cultivars for Iowa growers.
What black walnut trees are the best varieties for planting in Iowa?
Year of Grant Completion
Hanson, Billie, "Black walnut cultivar performance" (2004). Leopold Center Completed Grant Reports. 230.