Lettuce is a cool season vegetable. It is characterized by a loose leaves and head. It is easy to grow. You can grow lettuce under a limited space even in vegetable garden, sack garden, greenhouse or hydroponically. It is very nutritious and rich in vitamins and minerals. This is the reason why it is widely used as salad. Apart from salad, it is also used in soups, sandwiches, wraps or grilled. Apart from being nutritious, it is also low in calories which makes the crop good to be used in weight loss programs. The nutritional benefits and health benefits makes the crop have a high demand.