California Barrel Cactus (Ferocactus cylindraceus): A Tall, Red-Spined Barrel of the Mojave Desert

California Barrel Cactus, also called Compass Barrel, is a tall, cylindrical barrel cactus that can reach 6–10 feet high. Its prominent ribs bear heavy, flattened, red to pink central spines that curve downward, and numerous white radial spines. The spines often point southward, giving the "compass" name. Yellow to orange flowers appear in a ring at the top in spring. Native to the Mojave and Sonoran Deserts, it’s a signature species of the region.

Taxonomic Profile

Culture

Full sun. Very well-drained, gritty soil. Extremely drought-tolerant. Hardy to 10°F (-12°C). Slow-growing. The spines are fierce—give space. A majestic specimen for large desert gardens and native plantings.