1. Grapes usually ripen in summer, autumn and winter. There are many varieties of grapes, and the climate in each region is different, so the ripening time of grapes is different.

2. Generally, most grapes in southern China ripen from June to July in summer, and a few varieties ripen from August to September in autumn. Grapes grow slowly in the north, and most of them mature in July and August in summer and autumn, but they will also bear a small amount of fruit in October. A few excellent varieties, such as Ice Grape, American Red Grape, Natural Grape, etc., have strong cold tolerance and generally ripen in cold winter. Generally, grapes of these varieties will ripen in November-December, and fresh and ripe grapes will be sold in the market from June to December.