gardning: Question of the week.
"You rightly say that Jerusalem artichokes are not from Jerusalem and are not artichokes. Why are they so called, then?" asks Diane Ellis, of Stafford.
There are two theories, Diane. One says that a French explorer brought the tubers over to Europe from North America in 1605 and told everyone they tasted like "real" (globe, that is) artichokes.
The Jerusalem bit is derived from girasole, the Italian for their botanical relative, the sunflower. Other scholars say the name is a simple corruption of the Dutch city from where they were first introduced to England in 1616 - Temeuzen.