Water sparingly, allowing the soil to dry out completely between waterings. Overwatering is a common cause of root rot in Harrisia species.

Reduce watering significantly during cooler months to mimic their natural dormancy period. Ensure good drainage to prevent waterlogging.

Prune only to remove dead, damaged, or crossing stems. Wear thick gloves to handle this spiny cactus. Pruning can also be done to control size or shape, but it's generally minimal for this species.

Make clean cuts with a sharp, sterilized knife or shears.

Propagate by stem cuttings. Allow cuttings to callous over for several days to a week before planting in a well-draining cactus mix. Roots typically form within a few weeks to months.

Use sterile tools and gloves when handling.

Repot only when the plant becomes root-bound, typically every 2-3 years. Choose a pot that is only slightly larger than the current one and ensure it has drainage holes. Use a gritty, well-draining cactus soil mix.

Handle with extreme care due to spines.