The Ljubljana Botanical Garden () covers next to the junction of the Gruber Canal and the Ljubljanica, south of the Old Town. It is the central Slovenian botanical garden and the oldest cultural, scientific, and educational organisation in the country. It started operating under the leadership of Franc Hladnik in 1810. Of over 4,500 plant species and subspecies, roughly a third is endemic to Slovenia, whereas the rest originate from other European places and other continents. The institution is a member of the international network Botanic Gardens Conservation International and cooperates with more than 270 botanical gardens all across the world.