Rumex lunaria, commonly known as Canary Island Sorrel, is a semi-deciduous perennial herb native to the rocky coastal areas and semi-arid regions of the Canary Islands. It typically grows to a height and width of 2-3 feet (0.6-0.9 meters), forming a bushy clump of foliage. The plant is characterized by its large, paddle-shaped green leaves and tall, erect stems that bear small, reddish-brown flowers during the summer months. While not particularly showy, the flowers are followed by distinctive winged fruits that add interest to the plant’s appearance.

Canary Island Sorrel is valued for its drought tolerance and its ability to thrive in poor, well-drained soils, making it suitable for xeriscaping and rock gardens. It is also used in coastal restoration projects due to its adaptability to harsh seaside conditions. Gardeners should be cautious, as Rumex lunaria can become invasive outside its native range, particularly in Mediterranean climates. It requires minimal water once established and prefers full sun to part shade. There are no major diseases or pests associated with this plant, but it can spread aggressively if conditions are favorable.CC BY-SA 4.0