Rue
Image: Mehmet Baran (cc0)
NameRue
Scientific NameRuta graveolens
Common NamesRue, Common Rue, Herb-of-grace, Garden Rue
Plant FamilyRutaceae
Natural HabitatNative to the Balkan Peninsula, Rue thrives in dry, rocky, and sunny areas. It is widely cultivated in gardens globally and can be found naturalized in disturbed soils, roadsides, and waste places in many temperate regions.
Parts Usedleaf,flower
Medicinal Actionsanti-inflammatory,antimicrobial,nervine
Traditional UsesTraditionally, rue has been used in very small doses for digestive issues, menstrual problems (as an emmenagogue), and as an antispasmodic. Externally, it was applied as a poultice for sprains, bruises, and rheumatic pain, and also used as an insect repellent. Historically, it was also associated with protection against evil and witchcraft.
Active ConstituentsFuranocoumarins (e.g., psoralen, bergapten), Alkaloids (e.g., graveoline, arborine), Flavonoids (e.g., rutin), Essential oils (e.g., 2-undecanone)
Preparation Methodsinfusion,tincture,poultice
Contraindications & WarningsRue is highly toxic in large doses, causing severe gastrointestinal upset, liver damage, and kidney damage. It is a potent abortifacient and emmenagogue, thus absolutely contraindicated during pregnancy and lactation. Contact with the fresh plant can cause phototoxic dermatitis (phytophotodermatitis), leading to severe skin blistering when exposed to sunlight. Avoid use by individuals with kidney or liver conditions.
Cultivation NotesRue prefers full sun and well-drained, alkaline to neutral soil. It is drought-tolerant once established and can be grown from seed or cuttings. Prune in spring to maintain shape and encourage bushiness.
Raritycommon
Description
Ruta graveolens is an aromatic, evergreen subshrub characterized by its distinctive bluish-green, bipinnate or tripinnate leaves, which are dotted with oil glands. When bruised, the leaves emit a strong, somewhat acrid scent. The plant typically grows to about 2-3 feet tall, producing clusters of small, yellow-green flowers.
