Hakgala Botanical Garden is one of the five botanical gardens in Sri Lanka. The other four are Peradeniya Royal Botanical Garden, Henarathgoda Botanical Garden, Mirijjawila Botanical Garden and Seethawaka Botanical Garden. It is the second largest garden in Sri Lanka. The garden is contiguous to Hakgala Strict Nature Reserve.
Hakgala Botanical Garden is situated on the Nuwara Eliya - Badulla main road, 16 km from Nuwara Eliya. The garden has a cool temperature climate because of altitude and is 1620 meters (5,400 feet) above the sea level. From December to February it has a cold climate, while the slightly warm climate persists from April to August.
The garden was established in 1861 as an experimental cultivation of Cinchona, a commercial crop thriving at the time. Once after Tea replaced the Cinchona, it was turned into an experimental Tea Cultivation. In 1884 it transformed to a garden. Since then many sub-tropical and some temperate plants were planted in the garden.
In the folklores, it says Sri Lankan King Ravana after abducting Sita, kept her hidden in this area and area was offered to Sita as a pleasure garden, the place finds mention in the Ramayana as Ashok Vatika. The area was named as "Sita Eliya" and "Sita Amman Temple" was built on the site.
There are over 10,000 species of flora planted here and during the Spring season in Nuwara Eliya thousands of visitors come to see the blooms here. The garden is famous for number of species of Orchids and Roses.