Leek

A leek was a vegetable which was supplied by Windy Ridge Veg Ltd. (TV: Children of Earth: Day Two ^[+]Loading...["Children of Earth: Day Two (TV story)"])

It was once suggested that the reason the Fifth Doctor wore a stick of celery on his coat was because nobody wants a leek on a spaceship. (PROSE: Knock! Knock! Who's There? ^[+]Loading...["Knock! Knock! Who's There? (novel)"])

The Seventh Doctor and Ace ate potato and leek soup. (PROSE: Cat's Cradle: Witch Mark ^[+]Loading...["Cat's Cradle: Witch Mark (novel)"])