- Leonardo da Vinci and Michelangelo both claimed rue's metaphysical powers improved their eyesight and creative inner vision. (An infusion of leaves is still used to bathe tired eyes)
- Branches of rue were used to sprinkle holy water before high mass - hence it became known as the Herb of Grace.
- It was an important strewing herb and anti-plague plant
- Robbers who stripped plague victims protected themselves with 'Vinegar of the four thieves' of which rue was a key ingredient
- It was the main component of mithridate - a greek all-purpose poison antidote.
- Rue is shown on the heraldic Order of the Thistle. - when Ophelia, in Shakespeare's Hamlet, IV,v (1600) is distributing flowers says: 'O! you must wear your rue with a difference,' she is referring to rue in the heraldic sense.
- It inspired the suit of clubs in playing cards.
- It's seeds were first used in Roman cooking in 1 AD
- If you crush and sprinkle it's dried leaves they are a powerful insect repellent.
- By drinking an infusion of its leaves is said to induce perspiration, bring on menstruation, and stimulate bile secretion.
- Herbalists use it to treat hysteria, epilepsy, and abnormal blood pressure.
- Next time you have partridge for dinner, use the seeds in a marinade with lovage and mint.
(Main Source: The Complete Book of Herbs : A practical guide to growing and using herbs by Lesley Bremness (1988)