|The leek is a vegetable that belongs, along with onion and garlic, to the genus Allium, currently placed in family Amaryllidaceae, subfamily Allioideae. Historically, many scientific names were used for leeks, which are now treated as cultivars of Allium ampeloprasum. Two related vegetables, elephant garlic and Kurrat, are also cultivars of A. ampeloprasum, although different in their uses as food.
eeks are easy to grow from seed and tolerate standing in the field for an extended harvest. Leeks usually reach maturity in the autumn months, and they have few pest or disease problems. Leeks can be bunched and harvested early when they are about the size of a finger or pencil, or they can be thinned and allowed to grow to a much larger mature size. Hilling leeks can produce better specimens. (Source: Wikipedia)