Recommended Temperature Zone: sunset: 12-13,16,17,21-24; USDA: 9-11
Frost Tolerance: Hardy to 15°F (-10°C)
Minimum Avg. Temperature: 45°F (7°C)
Sun Exposure: Full sun
Origin: Southeastern Brazil, northern Argentina
Growth Habits: Columnar cactus branching from the base, up to 30 feet tall (9 m), clump up to 15 feet in diameter (4.5 m), stems are 5-7 inches in diameter (12-17 cm), often no spines on younger stems, spines grow progressively as the stem ages.
Watering Needs: Does best with moderate water and monthly application of fertilizer in summer
Propagation: One of the easiest cactus to propagate by cuttings
This species is popular in cultivation and often encountered in southern Californian gardens, as well as in Phoenix. The stems have 5 to 8 narrow ribs with areoles 1-inch apart. Depending on the variety, the areoles are either almost spineless (C. hildmannianus) or with 7 radial spines and a central spine, measuring around 0.4 inch long (1 cm).
Blooming Habits: The 6-inch (15 cm), white, flowers open at night. They are followed by large, red, egg shaped fruits that split open when ripe.
large, red, egg shaped fruits that split open when ripe.
smooth, crisp. lemony.
Propagation: Seeds, cuttings