There is gardening life even in the presence of black walnuts, which produce a toxin that negatively affects the growth and survival of other plants. Learn about juglone (the toxin), and a number of woody, perennial and vegetable plants that are susceptible to or resistant to juglone. Presented by Lisa Johnson, Dane County Extension Horticulture Educator. Registration through Rotary Botanical Gardens is required by October 4. Presented via Zoom.