Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985
Beet
The Herbs
(Beta vulgaris) Large amounts of the leaf: X
Folk Names: Mangel, Mangold
Gender: Feminine
Planet: Saturn
Element: Earth
Power: Love
Magical Uses: If a man and woman eat of the same beet, they will fall in love.
Beet juice is used as an ink in love magic, and is also a blood substitute.