Bonsai Unearthed (Nashville, TN) owner Owen Reich discusses this tree celebrated for its delicate leaves, graceful branching, and dramatic color changes. 6:30–9 p.m., U-M Matthaei Botanical Gardens, rm. 125, 1800 N. Dixboro Rd. Free; metered parking. [email protected], annarborbonsaisociety.org/events.