Karoo Desert National Botanical Garden Karoo Desert National Botanical Garden The Karoo Desert National Botanical Garden is a botanical garden focused on succulents and other plants of arid regions, that lies at the foot of the Hex River Mountains range, in the town of Worcester, South Africa. It was originally set up in 1921 near Matjiesfontein further inland. However, in 1945 it was moved to Worcester. It is today one of nine National Botanical Gardens that are run by the South African National Biodiversity Institute (SANBI). The Garden spans an area of with only being cultivated. The remainder preserves the natural vegetation of the area,
Karoo sills (see below), creating multiple flat-topped hills, or Karoo Koppies, which are iconic of the Great Karoo. The vegetation of the Upper is similar to the Lower Karoo, so few people make a distinction between the two. The main highway (the N1) and railway line from Cape Town to the north enter the Lower Karoo from the Hex River Valley just before Touws River and follow a course about 50 km south of the Great Escarpment up to Beaufort West. Thereafter, they gradually ascend the Great Escarpment along a broad valley to Three Sisters on the Central Plateau and the