1. The seasonal vegetables in May are cucumber, tomato, beans, celery, eggplant, black fungus, bitter gourd, loofah, wax gourd, carrot and onion, all of which are seasonal vegetables in May.

2. In the early summer of May, these vegetables will gradually mature, but the picking time is different.

Besides, they are very common, and they are very easy to plant and cultivate without much management.