Protected cultivation of high value cut-flowers has become attractive because of more income from unit area. Orchids are attractive flowers with greater diversity and commercial importance. Among different orchids, Dendrobiums can be grown under different climatic conditions even in open ventilated greenhouses in tropics and sub-tropics. For production of quality flowers of Dendrobium, suitable package of practices should be adopted which includes choice of cultivars, providing congenial environment, media preparation, planting and establishment, care of crops and harvest and post-harvest technologies. The chapter focuses on suitable technologies for production of quality flowers of Dendrobium in greenhouses.