This garden has a large area of about 150 acres dedicated solely to the Sri Lanka’s flora and spectacular form of arboretum including varieties of endemic tress. In fact, the area comprises more than 110 different types of endemic plants and big collections of bamboo, palms, flowers, cacti and orchids within a highly delightful orchid region. In addition, you could find 200,000 different forms of preserved and dried specimens within Herbarium accumulated during last 180 years of the existence of such gardens. Other than this, you will find a biotechnology laboratory engaged in bulk propagation of rare, ornamental and endemic plants.