Winter honey and long honey topaz. Dongmi and Jiumi Topaz are tropical fruit trees, and they like warm and humid climate. The temperature is preferably above 10℃, and 20-35℃ is the most suitable. The average rainfall is between 1000-3000mm, and they grow well in warm and humid places all year round. The Pearl River Delta belongs to the south subtropical marine monsoon climate, with warm and humid winter, high temperature and rainy summer, frost-free and snow-free all year round, abundant rainfall and sufficient heat, which is very suitable for planting in the Pearl River Delta region.