Cactus Garden, situated around 33 km from Parwanoo, is one of the popular gardens in Parwanoo. Set-up in 1987 by Dr. J. S. Sarkaria, it houses around 3,500 species of cacti along with some endangered and rare Indian species.
Covering a large area of 7 acres, this garden is claimed to be the biggest cactus garden present in the entire Asian region. Travellers and botanists in large numbers come here to see the different varieties of cacti. The well-managed garden consists of three greenhouses having climate control facilities.