Xu Caihong arranges succulent plants at a greenhouse in Luanzhou City, north China's Hebei Province, Jan. 23, 2019. Xu Caihong, 39, began her succulent plants growing in 2016, and now she has three greenhouses for the plants after three years of efforts. By promoting both online and off-line sales, the annual sales of the plants has reached 1 million yuan (about 147,234 US dollars). (Xinhua/Yang Shiyao)