Leek Carentan is a popular heirloom variety of leek known for its long, slender stems and mild flavor,they typically produces uniform, cylindrical shafts that are easy to harvest and cook ,they are versatile in cooking and can be used in soups, stews, stir-fries, and as a flavorful addition to many dishes. Leeks are usually ready for harvest when they have reached a desirable size, They can be harvested by pulling them up from the ground or by carefully digging around the base of the plant,they are low in calories but rich in vitamins and minerals, including vitamins A, C, and K, as well as folate and manganese.