The Darjeeling Botanical Garden preserves several species of bamboo, oak, magnolia, arisaema, cotoneaster, wild geranium, and rhododendron ? forest native plants of the Darjeeling Himalayan hill region, Sikkim region, and other neighbouring regions. Also, several exotic plants are preserved. The Cacti and Succulent collection of 150 species is displayed in the Conservatory. The collection of native Orchids from the Singalila Ridge in present-day Singalila National Park is rare and notable.
