Dim sum various mixtures of flowers with green tea, black tea or oolong tea. Flowers used include jasmine, gardenia, magnolia, grapefruit flower, sweet-scented osmanthus and rose. There are strict rules about the proportion of flowers to tea. Jasmine tea is the most popular type of scented tea, and is often the most popular type of tea served at yum cha establishments. The above teas are produced in most of China. Chinese tea bushes ("Camellia sinensis") are cultivated in the mountain areas of tropical and subtropical regions or wherever there is a proper climate, sufficient humidity, adequate sunshine and fertile soil. Chinese tea
Darjeeling tea 1839 from Kathmandu, Nepal. In 1841, he brought seeds of the Chinese tea plant ("Camellia sinensis") from Kumaun and began to experiment with tea planting in Darjeeling. The British government also established tea nurseries during that period (1847). Commercial development began during the 1850s. In 1856, the Alubari tea garden was opened by the Kurseong and Darjeeling Tea company, followed by others. According to the Tea Board of India, "Darjeeling Tea" can only refer to tea that has been cultivated, grown, produced, manufactured and processed in tea gardens (see 'Tea Estates' section below) in the hilly areas of Sadar Subdivision,