Ruta graveolens, commonly known as rue, common rue or herb-of-grace, is a species of Ruta grown as an ornamental plant and herb. It is native to the Balkan Peninsula.
Ruta graveolens is native to southern Europe. It is a glabrous, glaucous, woody-based, shrubby perennial with aromatic, fern-like, compound leaves. It typically grows in a mound to 2-3’ tall. Notwithstanding its many historical uses, it is primarily grown today for ornamental purposes. Pinnately divided, blue green leaves (to 3-5” long) have oblong/spatulate segments. Foliage has a pungent aroma when bruised and leaves have a bitter taste. Small, 4- to 5-petaled, dull yellow flowers in clusters (flattened corymbs) bloom above the foliage in early summer. Fruit is a brown seed capsule. Ornamental value lies in the delicate blue green foliage. Rue was historically used for a large number of medicinal purposes, but effectiveness and safety concerns now discourage such uses. Leaves are toxic if ingested. Handling plants may cause dermatitis.