One of the largest rose gardens in Germany and the country's first botanical science center. It is called "Rhododendron" or "Rhododendron" according to the German name; It is a type of plant that follows the heather family. The garden maintains one of the largest collections of rhododendrons or roses in the world; Which extends over an area of about 46 hectares. The garden also contains a small botanical garden dedicated to alpine plants and some plants from Asia and Australia, in addition to many endangered local plant species.