Mammillaria bocasana. (Powder Puff Cactus). Sunset: 13-24, 29, 30; USDA: 8-10. Full sun to light shade. Hardy to 28 F. Regular water during growing season, keep dry during winter. Clumping, globular cactus with hairy spines, 2.5" in diameter. Pink or yellow flowers spring and summer. Origin: Central Mexico.