Water thoroughly when the soil is completely dry, typically every 2-4 weeks during the growing season. Reduce watering significantly in winter, allowing the soil to dry out between waterings to prevent root rot.

Ensure good drainage to avoid waterlogged conditions.

Pruning is generally not necessary for Cleistocactus brookeae. If removing dead or damaged stems is required, use a sharp, sterile knife or shears.

This is best done during the growing season to allow for quicker recovery and to prevent disease introduction.

Propagate via stem cuttings or offsets. Allow cuttings to callus for a few days before planting in well-draining cactus mix. Offsets can be gently removed and potted up.

Both methods are best performed in spring or early summer.

Repot every 2-3 years or when the plant becomes root-bound. Use a well-draining cactus or succulent mix. Choose a pot only slightly larger than the previous one.

Repotting is best done in the spring before the active growing season begins.