Cephalocereus senilis (Haw.) Pfeiff.
Old Man Cactus, Old Man of Mexico, Bunny Cactus, White Persian Cat Cactus
Cephalophorus senilis, Cereus senilis, Pilocereus senilis
Cephalocereus senilis is a tall, columnar growing cactus with clusters of stems that may grow up to 50 feet (15 m) tall and up to 18 inches (45 cm) in diameter. It has 12 to 30 ribs, 1 to 5 central spines, up to 2 inches (5 cm) long and 20 to 30 hair-like laterals. The individual stems are usually unbranched. The 2 inches (5 cm) long, whitish pink flowers, followed by pinkish-red fruit, up to 1.2 inches (3 cm) long covered with yellowish hair.
How to Grow and Care
Old Man Cactus are mostly grown as houseplants and stay small and easily kept in a container for their entire lives. Use a cactus mix or blend of sand, perlite and topsoil for indoor cactus growing. Also, use an unglazed pot for growing Old Man Cactus. This will allow the pot to evaporate any excess moisture. Old Man Cactus houseplants like their soil on the dry side and overwatering is a common cause of rot and disease. Allow the top couple of inches of soil dry out completely between waterings. In winter, reduce watering to once or twice during the season… – See more at: How to Grow and Care for Old Man Cactus.
Native to Guanajuato and Hidalgo in eastern Mexico.