The Smithsonian Gardens greenhouse facility is the permanent home of Smithsonian Gardens’ Greenhouse Nursery Operations. It serves as the base of production and maintenance of plant material for the gardens and horticultural exhibits throughout the Smithsonian Institution. It houses the Smithsonian Orchid Collection, tropical plant specimens, and interior display plants, and also includes a greenhouse devoted to nectar plants used for the Butterfly Pavilion at the National Museum of Natural History.