Looking for a hardy herb to add to your garden? Consider Common Rue (Ruta graveolens), also known as Herb-of-grace. Its bluish leaves make it a popular ornamental plant, and it's tolerant of hot and dry soil conditions. But Common Rue is not just a pretty plant - it's also a medicinal herb, historically valued for its ability to strengthen the eyes. Rue contains rutin, a flavonoid that reduces capillary fragility, which may explain its reputation as an eye strengthener. However, be cautious when using Common Rue - it can cause dermatitis in some people, and large doses can be toxic. Rue has also had diverse culinary uses in the past, which you may want to explore. However, be aware that it has a bitter taste and can cause gastric discomfort. Common Rue is also an ingredient in witchcraft and spells. Want to add a touch of symbolism? Rue has been associated with the concept of regret, and is referred to as "herb-of-grace" in literature. It has even found its way into Shakespeare's Hamlet and Richard II!