21 May is 小满 (Grain Buds), the second solar term of summer. It is so named because the summer crops like barley and wheat are starting to bud but are not ready for harvest yet.Rain increases in the south and the temperature difference between the north and the south narrows. It is customary to eat bitter herbs like sow thistle for good health. Silk production areas in Jiangnan area (in southeastern China) worship the silkworm goddess (according to legend this is the birthday of Leizu, the Yellow Emperor’s wife who founded silkworm farming).