The University of Illinois Conservatory and Plant Collection is a small botanical garden on the University of Illinois Urbana–Champaign campus in Urbana, housed in the Plant Sciences Laboratory Greenhouses at 1201 South Dorner Drive. Though only about 2,000 square feet, it contains more than 200 species from 60 plant families, emphasizing tropical and subtropical plants valued for botanical interest or economic importance. Its greenhouse sections include ferns, bromeliads, cycads, orchids, carnivorous plants, herb and spice plants, and cacti and other succulents, with a butterfly garden outside. Since at least 2005, it has been regarded as a hidden public garden while continuing to serve academic purposes.