In what season does watermelon usually ripen?

Under natural ripening conditions, in southern China it can ripen in April, May, June, July, August and September. In the north, because of temperature and climate reasons, it only ripens in June and July.

Watermelon is cultivated in both northern and southern China. Watermelon is a dicotyledonous flowering plant; the plant shape is like a vine, and the leaves are feather-shaped. The fruit it bears is a pepo, a fleshy fruit unique to the gourd family Cucurbitaceae, a false fruit developed from an inferior ovary with 3 carpels and parietal placentation. The main edible part of the watermelon is the well-developed placenta. The outer skin of the fruit is smooth, green or yellow; the flesh is juicy and red or yellow, and white flesh is rare. Watermelon is cold in nature and sweet in taste; it has the effects of clearing heat and relieving summer heat, promoting body fluid and quenching thirst, and promoting urination and relieving restlessness; it helps to treat congestion and stagnation of qi in the chest and diaphragm, fullness and discomfort, difficult urination, sores in the mouth and nose, summerheat, heatstroke, and alcohol poisoning, among other conditions. The rind can also be used in cooking and as medicine.