Before it rains, the buds of Toona sinensis are tender as silk, which solar term refers to?

Before the rain, the buds of Toona sinensis refer to the solar terms in Grain Rain.

Grain Rain is the sixth solar term among the 24 solar terms and the last solar term in spring. It is celebrated every year from April to February1year in Gregorian calendar. Grain Rain was taken from the meaning of "Rain gives birth to a hundred valleys", and the precipitation increased obviously at this time. Seedlings and new crops in the field need the moisture of rain most. Only when the rainfall is sufficient and timely can cereal crops thrive.

Grain Rain, like rain, Xiao Man, light snow and heavy snow, is a solar term reflecting precipitation and ancient farming culture. In Grain Rain season, in the south of our country, it often begins to appear obvious rainy weather, especially in the south of our country. Once cold air meets warm and humid air, it often forms a long rainy weather.