Rough blue sage

Salvia chamelaeagnea is a species of flowering plant in genus Salvia, known as sages. It is endemic to South Africa, where it grows on the western coastline of the Cape of Good Hope. It is a shrubby perennial herb up to 6 feet (1.8 metres) tall and 4 feet (1.2 metres) wide. It bears three-quarters-inch (two-centimetre) light violet-blue flowers with pale lower lips and white throats. The small, green leaves release a slight medicinal odor when...