How to Grow Coryphantha Cactus
Coryphantha is a pincushion cactus that resembles Mammillarias, perhaps the best-known pincushion cacti. Unlike Mammillaria, however, Coryphantha is globular or cylindrical in form. Coryphantha grows to 12 inches (30 cm) tall and 4 inches (10 cm) thick. Coryphantha cluster in mounds and often become columnar with age. Coryphantha are free-flowering. They produce large, showy flowers…