The Saint Petersburg Botanical Garden, is the oldest botanical garden in Russia, consisting of outdoor and rich indoor collections, which is situated on Aptekarsky Island in Saint Petersburg and belongs to the Komarov Botanical Institute of the Russian Academy of Sciences.
The garden was founded by Peter I in 1714 as a herb garden in order to grow medicinal plants and reestablished as a botanical institution under the name Imperial Botanical Garden in 1823.
The garden has 25 greenhouses constructed in 1823-1824 (No. 1 – 28, the greenhouses No. 5 and No. 25 don’t exist, the greenhouses No. 10-11 are shared), some of them are open to the public (guided visits only). The indoor collections suffered significant losses during the Siege of Leningrad in 1941-1944. Out of 6367 species only 861 survived.
The outer park includes a small rock garden (constructed in the end of the 19th century) located in front of the Big Palm Greenhouse, and a 0.16 km² arboretum, organized partly as an English garden and partly as a formal garden. The park, unlike the greenhouses, is closed for visitors from October 1 to May 8. It is elevated only 1.5-3 m above sea-level and has thus regularly suffered from catastrophic floods characteristic of Saint Petersburg. The her-barium edifice built in 1913 stands in front of the main entrance.