The artist Thomas Baumgärtel, who entered the annals of twentieth century art as the‘ Banana Sprayer’, exhibited in 2008 in the palace orangery. As with countless other buildings home and abroad, he expressed his gratitude and appreciation by painting one of his famous spray bananas on the entrance to the orangery and on the outside of Palais Hirsch. They are part of a world-wide series of over 4,000 spray bananas on the facades of art locations.