How to prune variegated moon cactus

Any time, only if graft failure or dead tissue is evident. Remove dead or shriveled tissue with a sterile blade. Do not attempt to cut the graft union. If the scion is failing, re-grafting onto fresh rootstock is the correct intervention, not pruning.

Rarely — only if dead tissue or graft failure occurs. Variegated Moon Cactus needs no pruning of its own body. It is a grafted plant — the colorful top (scion) is fused to a rootstock. If the graft union fails or the scion shrinks, the whole plant is replaced rather than pruned. Only remove obviously dead tissue with a sterile blade.

Remove dead or shriveled tissue with a sterile blade. Do not attempt to cut the graft union. If the scion is failing, re-grafting onto fresh rootstock is the correct intervention, not pruning.