What month is plum blossom and summer?

Mei refers to the period of plum rain. Traditionally, in China, the judgment of plum entry and plum exit is based on the combination of solar terms and branches. According to the calendar, the first three days after mango planting or the third day after mango planting is plum blossom, and the first untimely day or untimely day after the summer heat is plum blossom. It's usually the end of May in the lunar calendar. In summer, it means really in summer.