Epithelantha pachyrhiza

Growing best in environments similar to its native habitat, the pingpong-ball cactus needs a generous amount of sunlight throughout its life for optimal growth. It also tolerates the absence of shade. Excessive light can cause scorching, while too little can slow growth and reduce flowering.

The Pingpong-ball cactus occurs naturally in cool to warm climates and prefers temperatures between 59 and 100°F (15 to 38°C). While it can withstand seasonal fluctuations, steady temperatures are preferable for its growth.

For Pingpong-ball cactus, light applications of fertilizer once or twice a year during the growing season are sufficient. Do not fertilize in winter or summer when the plant is dormant. Cut back on fertilizer for repotted plants and wait a couple of months after repotting before applying any fertilizer. Fertilizing helps maintain healthy growth and encourages flowering.

Repot the pingpong-ball cactus in spring or summer, selecting a pot slightly larger than the present one that provides good drainage. Use a well-draining, sandy or gritty cactus mix. Handle it carefully to avoid the spines. Let the cactus dry out before repotting to help prevent root rot. After repotting, wait for a week before watering so the roots can heal.