This one of a kind succulent has beautiful purplish stems and is one of the most attractive species. It will grow up to 7". Eventually it will form a woody stem. Frost tolerance: When dormant, the plant is slightly cold tolerant (down to nearly -5° C or less) Sun exposure: They do need a lot of light to develop their typical compact shape, but different clones vary in their tolerance of full sunshine. Origin: Canary Islands. Growth habits: Slow to moderate growth rate. Watering needs: Rots easily, especially if over wet. Propagation: Cuttings grow easily once left to callous for several days and then planted in succulent soil. Seeds germinate in 14-21 days at 21°C. Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz