How to prune golden lace cactus

Spring, for offset removal or propagation. Wear gloves. Use a sterile blade to cut or twist away dead/rotted offsets at the base. For propagation, remove a healthy pup, dust the cut end with sulfur or charcoal, and leave it to callous for 2–3 days before potting in dry cactus mix.

Rarely — only as needed for dead growth or deliberate propagation. Golden Lace Cactus (Mammillaria elongata 'Copper King') naturally forms dense, attractive clusters and needs no routine pruning. Do not shape or shorten individual stems — the cactus will scar permanently. Only remove fully dead or rotting offsets. Detaching healthy pups for propagation is the main reason to cut.

Wear gloves. Use a sterile blade to cut or twist away dead/rotted offsets at the base. For propagation, remove a healthy pup, dust the cut end with sulfur or charcoal, and leave it to callous for 2–3 days before potting in dry cactus mix.