High Quality Organic Iranian Fresh Watermelon Watermelon, Citrullus lanatus, is a succulent fruit that is native to tropical Africa. It has a soft flesh on the inside, cover by a thick, hard skin. The colors usually associated with watermelons are a bright red flesh and a striped green skin, but there are other variations of this fruit as well. watermelons are usually eaten raw but are also used in salads or pickled sometimes. The fruit is made up of around 90% water. Nutritionally, it mainly consists of carbs and sugar, with very small amounts of fat and protein as well. It is also a source of several vitamins and minerals such as potassium, copper, vitamin C, B5 and A.