Leek
Leek
The genus Allium also contains the onion, garlic, shallot, scallion, chives, and Chinese onion. Three closely related vegetables—elephant garlic, kurrat and Persian leek or tareh—are also cultivars of A. ampeloprasum, although different in their culinary uses.
Etymology
Historically, many scientific names were used for leeks, but they are now all treated as cultivars of A. ampeloprasum. The name leek developed from the Old English word lēac, from which the modern English name for garlic also derives. Lēac means 'onion' in Old English and has cognates in other Germanic languages: Danish løg 'onion', Icelandic laukur 'onion', Norwegian løk 'onion', Swedish lök 'onion', German Lauch 'leek', Dutch look 'Allium (any plant of this genus)'.
Cultivation
Leeks must be grown in soil that is loose and drained well; they can be grown in the same regions where onions can be grown. Leeks may be seeded directly, but are more typically sown at high density in seed-beds before being transplanted into the field. This happens at 12 weeks, when they have reached the thickness of a pencil.