Epithelantha bokei

Native to arid areas, the Pingpong ball cactus does best in full sun; its native habitat features intense sunlight and minimal shade. It will also tolerate partial sun, providing some flexibility in its growth.

Although the Pingpong ball cactus tolerates some heat, it mainly thrives and grows in cooler periods, going dormant in summer. In very hot weather it should be shaded to prevent scorching from intense sun. Watering ought to be reduced or stopped during the hottest months to avoid root rot. Winter and spring are when the Pingpong ball cactus shows vigorous growth. As long as temperatures do not fall too low, it will continue to grow steadily.

Light applications of fertilizer once or twice a year during the growing season are sufficient for the Pingpong ball cactus. Do not fertilize in winter and summer when it is dormant. For repotted plants, cut back on fertilizer and wait a couple of months after repotting before applying any. Fertilizing promotes healthy growth and encourages blooming.

Repot the Pingpong ball cactus in spring or summer, selecting a pot slightly larger than the current one that has good drainage. Use a sandy or gritty cactus mix that drains well. Handle the cactus carefully to avoid its spikes. Let the cactus dry out before repotting to help prevent root rot. After repotting, wait for a week before watering to allow the roots to heal.