The gardens date back to 1754 when Empress
Maria Theresa founded the
Hortus Botanicus Vindobonensis with renowned botanist
Nikolaus von Jacquin as one of its first directors. His son,
Joseph von Jacquin, succeeded him as director, as did a number of other leading botanists in turn, including
Stefan Endlicher,
Eduard Fenzl,
Anton Kerner von Marilaun,
Richard von Wettstein,
Fritz Knoll,
Karl von Frisch, and
Lothar Geitler. The Institute of Botany building was opened in 1905. However, at the end of the
Second World War, the institute, all the greenhouses, and the entire garden area were bombed and severely damaged, and thus required major repair work. In 1994,
Wollemia (
Wollemia nobilis) was discovered in Australia, previously known only from fossils. On the occasion of the 250th anniversary of the Botanical Garden of the University of Vienna in 2004, the garden received a
Wollemia as a gift from Australia, this was the first
Wollemia to be shown on the European mainland. This plant is now on permanent loan to the Schönbrunn Palm House. In the garden, the non-hardy plant is part of the cold house group. On May 29, 2022, 2:30 p.m., the titanwort has reached "full bloom". The top heats up in the process and emits an unpleasant odor. The opening hours of the two following days are extended to 11 p.m. == Flora ==