Euphorbia regis-jubae, commonly known as King Juba’s Euphorbia, is an evergreen succulent native to the semi-arid shrublands and rocky areas of the Canary Islands and Morocco. It can grow up to 2 meters (7 feet) tall and is characterized by its light brown, thick, fleshy stems that bear terminal rosettes of narrow, oblong leaves with a pointed or somewhat blunt apex. During the winter and spring, it produces inconspicuous green and yellow flowers that are typical of the Euphorbiaceae family. The plant’s sap is toxic and can cause skin irritation.

King Juba’s Euphorbia is valued for its architectural form and drought tolerance, making it suitable for xeriscaping and as a focal point in rock gardens or Mediterranean-style landscapes. It is also used in coastal planting due to its salt tolerance. In cultivation, it requires minimal maintenance, thriving in part shade to full sun and preferring well-drained soils. Overwatering should be avoided to prevent root rot. While it is generally pest-resistant, mealybugs and spider mites can sometimes be a problem. Due to its toxic sap, care should be taken when handling this plant, especially during pruning or repotting.CC BY-SA 4.0