Mirijjawila Botanical Garden is one of the five botanical gardens in Sri Lanka. Mirijjawila Botanical Garden is located on the Colombo-Kataragama main road. It has the Mattala International Airport on its left side and the Hambantota Harbour on its right side.
This land was covered with thorny shrubs and abandoned chena lands, when it allocated for this purpose in 2006. Three water tanks named Kohombagas wewa, Malitthangas wewa and demataththa wewa, are constructed in the garden premises to preserve the moisture of the land. The total area of the botanical garden is about 300 acres.