Allow the soil to dry out completely between waterings. Overwatering is the most common cause of problems. Water thoroughly when the soil is dry, ensuring good drainage.

Reduce watering significantly during winter dormancy to prevent root rot.

Prune sparingly to maintain shape or remove any dead or damaged stems. Euphorbia cylindrifolia generally has a compact growth habit. Use clean, sharp tools to make cuts.

Avoid excessive pruning as it can stress the plant.

Easily propagated from stem cuttings. Take cuttings of 5-10 cm during spring or summer. Allow the cut end to callus over for a few days before planting in well-draining soil. Rooting typically occurs within a few weeks.

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

Repot in spring before the active growing season begins.