Royal Botanical Garden, Peradeniya is situated about 5.5 km to the west from the city of Kandy in the Central Province of Sri Lankaand attracts 2 million visitors annually . It is renowned for its collection of a variety of orchids. It includes more than 4000 species of plants, including of orchids, spices, medicinal plants and palm trees . Attached to it is the National Herbarium. The total area of the botanical garden is 147 acres (0.59 km2), at 460 meters above sea level, and with a 200-day annual rainfall. It is managed by the Division of National Botanic Gardens of the Department of Agriculture.