Allow the soil to dry out completely between waterings. In spring and summer, water thoroughly, but reduce frequency significantly in fall and winter. Overwatering is the most common cause of rot.

Ensure excellent drainage to prevent root issues.

Pruning is rarely necessary for Ferocactus echidne, as it typically grows as a solitary or slowly clumping barrel cactus. Remove any dead or damaged parts with a clean, sharp tool to prevent disease.

This is mainly for aesthetic maintenance.

Propagation is primarily done through seeds. Sow seeds in a well-draining cactus mix and keep them warm and lightly moist. It can also be propagated by offsets, carefully removed and allowed to callus before planting.

Repot young plants annually and mature plants every 2-3 years, or when rootbound. Use a gritty, well-draining cactus mix. Repot in spring before active growth begins. Handle with extreme care due to spines.