Watermelon is native to tropical Africa. Remains have been found, from which it follows that already existed in ancient Egypt. He went on to the countries bordering the Mediterranean. Came to the Americas by European countries like Spain and Portugal. It is a herbaceous plant belonging to the Cucurbitaceae family and grows from the plant called Sander. You need warm or tropical. The main producers of watermelons countries are Turkey, Greece, Italy, Spain, China and Japan. It is also effective diets.