The Jerusalem artichoke is a type of sunflower (Helianthus tuberosus) that produces edible tubers. These plants grow readily throughout the United States. However, the plant is better adapted to the northern two-thirds of the country rather than the southern third. Jerusalem artichokes or "sunchokes" as they are sometimes called, is one of the easiest edibles to grow. Often used for pickling purposes. Fresh tuber tastes like a water chestnut and is used in salads. Tubers can also be cooked like potatoes. Jerusalem artichokes are often eaten by diabetics since they contain inulin instead of starch and can be used in any recipe calling for potatoes.