From ArborWiki

Botanical gardens of the University of Michigan. Walking trails through a woods near Fleming Creek, and greenhouses with lots of plants. The cactus room is a favorite. Free admission to UM students, free to the public on Friday afternoons.

Web site: http://sitemaker.umich.edu/mbgna

[edit] Location

1800 N. Dixboro Road Ann Arbor, MI 48105 734-647-7600

1/4 mile south of Plymouth Road. No bus service. No real way to walk to get there, though there are talks of trails to connect it with Parker Mill Park.