SIU Arboretum | SIU Foundation | SIU

The SIU Arboretum is located in one of the most diverse regions for natural hardwood forests in the United States.  Visitors are urged to explore our 1,200-acre campus landscape, which contains 5,217 living trees in our inventory including 72 genera and 155 species. Six tree identification tours have been designed to promote the Arboretum, and to protect it for future generations by building a diverse and engaged community of students, donors, volunteers and advocates.