Watermelon is a spreading trailing plant that produces large round to oblong fruits with a mottled or striped green skin. Watermelon flesh can be red, orange, yellow or white depending on the variety. Watermelon is grown in tropical and subtropical areas worldwide for its large edible fruit, which is a special kind of berry with a hard rind and no internal division, botanically called a pepo. The sweet, juicy flesh is usually deep red to pink, with many black seeds, although seedless varieties have been cultivated. Watermelons are tender and need a long warm growing season to produce its fruit. Watermelon fruit is 91% water, contains 6% sugars, and is low in fat. In a 100 gram serving, watermelon fruit supplies 30 calories and low amounts of essential nutrients, only vitamin C is present in appreciable content at 10% of the Daily Value.