Water sparingly during the growing season, allowing the soil to dry out completely between waterings. Reduce watering significantly in winter, providing only enough to prevent extreme dehydration.

Overwatering is the most common cause of rot in Tephrocactus species.

Pruning is generally not required for Tephrocactus aoracanthus. If a segment becomes damaged or diseased, it can be carefully removed with a sterile knife. Otherwise, allow the plant to grow naturally.

Natural fragmentation is how this species often propagates.

Propagation is primarily achieved through stem segmentation. Gently detach a mature stem segment and allow the cut end to callus over for several days to a week.

Then, plant the callused segment in well-draining cactus soil. It will root over time.

Repot Tephrocactus aoracanthus every 2-3 years, or when it outgrows its current container. Use a gritty, fast-draining cactus potting mix.

Choose a pot slightly larger than the current one, ensuring it has drainage holes. Repot in spring before active growth begins.