For millennia, Ruta graveolens, more popularly known as "Common Rue" or "Herb of Grace" has held an important role in natural and folk medicinal wisdom. It also has a colorful history.
Rue was well-respected by Hippocrates for its medicinal qualities. Aristotle touted it as essential for calming nervousness. Pliny recorded that it was used by artists to encourage eye health. When tied in bunches, this plant, also known as "herb of grace," was used in churches and cathedrals to sprinkle holy water. Rue was one of the active ingredients of Four Thieves' Vinegar, which was said to protect the opportunists who stole from those suffering from the effects of the Black Death. It was sprinkled on the floors of courthouses and carried by judges to ward of the illness and fleas that so often afflicted the incarcerated poor. The colloquial saying, "rue the day" is said to come from the discomfort caused by handling the leaves of Ruta graveolens. Its leaves are said to be the basis for the suit of clubs used on playing cards for centuries. This varied history only scratches the surface of this interesting and useful herb.
Ruta graveolens is thought to have come to southern Europe via northern Africa and the Mediterranean region. This hardy evergreen shrub then established itself throughout the continent and, with the help of British and Spanish colonialism, became a favorite in cottage gardens in the West Indies, India, Mexico and the United States. It is now a naturalized member of the flora of both North and South America and thrives easily in USDA growing zones 6 through 11. Standing up to two feet tall, Rue's little yellow flowers and green-gray stems and leaves can be found in culinary and medicinal herb gardens, butterfly habitats and growing of its own accord along roadways.
Historically, Rue has been used to relieve the pain associated with the physical symptoms of complaints such as gout, rheumatism, and sciatica. Along with alleviating the uncomfortable effects of gas and colic, rue was thought to expel worms from the body. Throughout the years of its use, rue has been used to promote menstruation. It is also used as a digestive tonic and to stimulate the appetite. The herb is edible and often used in salads. It is a good source of flavonoids.
Ruta graveolens can be used fresh or dried. A beneficial tea or infusion can be sipped to calm the nerves, increase the appetite or to ease croupy symptoms. An oil made with Rue can be applied to areas suffering from sciatica or to ease chest congestion. Homeopathic preparations are available to treat arthritis and joint pain.
Women who are pregnant, or believe that they may be pregnant, should not use rue in any form. Its history as an emmenagogue suggests that it can induce miscarriage. Rue should not be used in large dosages as it can cause some poisoning in sensitive people. Finally, the juice of the fresh plant is an irritant when applied to the skin in a concentrated area. People with sensitive skin should avoid topical application of rue. Rue is a favorite food plant of specific butterfly species and makes a lovely addition to the garden but the gardener must exercise caution as the sun can cause a photosensitive reaction in the skin that was exposed to the sap. The resulting rash is reminiscent of poison ivy and can be a long-lasting annoyance.
If handled with caution, Rue can be a useful addition to your natural medicine cabinet. People suffering from joint and nerve pain may find relief in this herb. Women with irregular periods might be able to regulate them, in part, through using a weak rue tea. However you choose to incorporate it into your life, exercise caution with rue so you can reap its healthful rewards without unnecessary complications.
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