Allow the soil to dry out completely between waterings. During the growing season (spring/summer), water thoroughly when the substrate is dry.

Reduce watering significantly in autumn and winter, providing only minimal moisture to prevent desiccation.

Pruning is generally not required for Astrophytum coahuilense. Removal of dead or damaged parts can be done with a sterilized knife or shears if necessary. Focus on maintaining its natural, spherical to columnar form.

Propagation is typically achieved through seed. Sow seeds in a well-draining cactus mix in spring or summer.

Alternatively, offsets can be carefully removed when mature, allowed to callus, and then potted in a suitable substrate.

Repot Astrophytum coahuilense every 2-3 years, or when it outgrows its container, preferably in spring. Use a gritty, fast-draining cactus mix.

Ensure the plant is dry before repotting and wait a week or two before watering.