How to prune euphorbia horrida

Spring, when warmer temperatures support faster callusing. Cut rotten tissue back to clean, healthy flesh with a sterilised sharp knife. Immediately blot the oozing latex with a dry cloth and allow the wound to callus in a dry, bright location for at least a week before watering.

Rarely — only when rot or severe damage occurs. African milk barrel (Euphorbia horrida) needs no routine pruning. It grows as a ribbed columnar succulent and should be left to develop naturally. Remove only dead stem sections caused by rot, making clean cuts with a sterilised knife. Always wear gloves and eye protection — the latex sap is caustic and toxic.

Cut rotten tissue back to clean, healthy flesh with a sterilised sharp knife. Immediately blot the oozing latex with a dry cloth and allow the wound to callus in a dry, bright location for at least a week before watering.