Learn the ins and outs of sharpening garden tools and bring a tool of your own to sharpen. Arboretum horticulturist Katrina Lewin will explain how properly maintained tools will make a difference for both you and for your plants. THE 8:30 a.m. SECTION HAS BEEN CANCELED. PLEASE REGISTER FOR THE 11:00 A.M. SECTION. Saturday, March 30, 2019, 11:00 a.m. to 12:30 p.m.