Sweet potatoes, cauliflower, lilies, lotus root, pumpkin, water hyacinth, wild rice, taro and so on. White Dew is the 15th solar term in the "24 Solar Terms", indicating the end of Mengqiu and the beginning of mid-autumn, and there are customs such as harvesting clear dew, brewing wine from grains, drinking white dew tea, and eating sweet potatoes.

The White Dew festival represents the change of temperature from hot to cool, and the gradual depression and maturity of all natural things with the growth of cold, which is a busy time in all parts of China to start harvesting crops such as grains, sorghum, soybeans, corn, rice, and so on.

Rhombus, also known as waist lozenge, water chestnut, etc., is an annual herbaceous aquatic plant that can be steamed and eaten, or used to make porridge.

White Dew Festival in the annual calendar September 7 - 9, is an important festival reflecting the growth of cold in nature, from the beginning of White Dew, the weather gradually turned cooler, the temperature difference between day and night.