Spring and early summer. The main production period of black pearl plums in Hanyuan, Sichuan Province is from the end of June to the beginning of July in summer, and the sales price of cherries will be reduced when they enter the market in large quantities, and the cheapest is in spring and early summer. Cherry is a kind of fruit with short growing season, and its storage period is short, and its taste is the best when it is fresh. If it is stored for too long, its taste will be seriously reduced.