Matthaei Botanical Gardens & Nichols Arboretum hosts regular, free educational programs, workshops, and presentations on a variety of environmental, horticultural, and cultural topics. Tonight's presentation is by long-time bonsai expert Vance Hanna, who discusses and demonstrates best practices for bonsai tool care and proper techniques to sharpen and maintain bonsai cutting tools. Arrive by 6:30 pm to speak with Bonsai Society members. Presented by Ann Arbor Bonsai Society. Free.