Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985
Leek
The Herbs
(Allium porrum) G
Gender: Masculine
Planet: Mars
Element: Fire
Powers: Love, Protection, Exorcism
Magical Uses: When two people eat leeks they will fall in love with each other.
Leeks are also carried as protective amulets, and are bitten to break hexes and drive away evil.