Herb Robert, or what was once known as Saint Robert’s Herb, was named after a French monk who lived in 1000 AD, who has cured many people suffering from various diseases using this plant. Herb Robert, a shade-loving member of the geranium family, is little used in modern herbalism but is occasionally used to halt bleeding or treat diarrhoea due to its astringent properties, as one of its common names bloodwort hints at.