How to prune plaid cactus

Any time, only when dead or damaged tissue is present. Remove dead or damaged tissue with a clean, sterile blade at the boundary of healthy tissue. Allow cut surfaces to callous fully for several days in a dry, bright location before resuming normal watering.

Rarely — only when dead or damaged tissue is present. Plaid Cactus needs no pruning. This slow-growing, solitary Gymnocalycium maintains a neat ribbed form without any intervention. Remove only dead or damaged tissue as it appears. No shaping or thinning is needed — cutting into the ribs would permanently disfigure the plant.

Remove dead or damaged tissue with a clean, sterile blade at the boundary of healthy tissue. Allow cut surfaces to callous fully for several days in a dry, bright location before resuming normal watering.