Non-hardy cushion and mountain plants can be viewed from the outside of the two greenhouses flanking “Haus Leonhardsbrunn”.
The greenhouses in between are devoted to non-hardy mountain plants mainly from the Southern Hemisphere.
The flower beds in front of the building usually display varieties of dahlias, which bloom in late summer. The surrounding lawns may be used for recreation. Adjoining them is a huge playground, a water playground, a kiosk, a miniature golf course, and the northern train station of the “Palmen-Express”. “Haus Leonhardsbrunn” also hosts the "Kinder im Garten", project, which received an honorable mention by the German UNESCO commission in 2011 as a project of excellence within the UN decade of "Bildung für nachhaltige Entwicklung"