Titanopsis calcarea 'Jewel Plant' is a mat-forming succulent that is also known by various names: Concrete Leaf, Jewel Weed, Carpet Leaf, Sheep’s Tongue, or Living Stone. It forms rosettes up to 3 inches (7.5 cm) in diameter. These rosettes consist of fleshy grey green leaves with plenty of rough white grey tubercles concentrated at the tips. Jewel Plant produces yellow or orange flowers of about 0.8 inch (2 cm) in diameter. It usually becomes dormant or semi-dormant during the hottest summer months.
Sun exposure: Full sun. Soil: Porous, gritty and well-drained potting soil. Water: In the spring and autumn, water thoroughly when soil is dry to the touch, then let drain completely. Water less frequently in the winter, only enough to prevent the leaves from shriveling. Reduce watering to a minimum during its dormancy in the summer to avoid root rot. Moisture: Concrete Leaf prefers a dry atmosphere. Fertilizer: Feed with a cactus food every 1-2 weeks during the growing season in the spring. Repotting: Every two years.
USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)