The winter exhibit at the University of Michigan Matthaei Botanical Gardens takes a look at how plants have played an essential role in celebrations and cooking, especially during the holiday season. Free conservatory admission. Matthaei Botanical Gardens is open 7 days a week, 10am-4:30pm; until 8pm Wednesdays. Closed Thanksgiving day, Christmas Eve and Christmas day, and New Year's Eve. Open New Year's day. Activities during the exhibit include a visit from Father Christmas, food event, music on Nov. 24, seasonal flower display, kids activities, and more. For more information, visit the website link or call (734) 647-7600.