In cultivation for hundreds of years, Phaius is a genus of about 50 species of large, warm-growing, terrestrial orchids found in a huge natural range including Africa, Madagascar, Asia, Australia and the Pacific Islands. Phaius tancarvilleae (Nun’s Orchid) is the species most often found in commerce. Easy to grow in the home, as long as you follow an appropriate care routine, these orchids are spectacular plants and make gorgeous houseplants.