Water sparingly, allowing the soil to dry out completely between waterings. Overwatering is the most common cause of root rot in Euphorbia neriifolia.

Reduce watering significantly during the winter months, as the plant enters a period of dormancy and requires much less moisture to prevent waterlogged soil.

Prune to maintain desired shape and size, or to remove any dead or damaged stems. Pruning is best done in spring or early summer. Wear gloves and eye protection as the plant exudes a milky, irritating sap when cut.

Sterilize your pruning tools to prevent disease transmission.

Propagate from stem cuttings taken in spring or early summer. Allow the cuttings to callus over for a few days before planting in well-draining soil. Water lightly and keep in a warm, bright location.

Rooting can take several weeks to months. Use gloves due to sap.

Repot only when the plant becomes root-bound, typically every 2-3 years, in the spring. Use a cactus or succulent potting mix with excellent drainage. Choose a pot that is only slightly larger than the current one.

Handle with care due to the sharp spines and irritating sap.