With an area of more than 30 hectares, the Hohenheim Gardens are the largest part of the campus of the University of Hohenheim in Stuttgart, Baden-Württemberg, Germany. The oldest part of the garden, the Exotic Garden or Franziskas Dörfle, was established in 1776 by Duke Carl Eugen von Württemberg and Franziska von Hohenheim. Today, the Hohenheim Gardens are home to around 3000 taxa of woody plants as well as numerous monuments and works of art from four centuries. Over 150 woody plants are more than 100 years old. The Hohenheim Gardens are open all year round, all day and free of charge.