How to prune myrtillocactus geometrizans

Spring through early summer. Use a sterilised pruning saw to remove a damaged branch flush with its junction to the main trunk or a healthy branch. Dust the wound with garden sulfur and withhold water for a week.

Rarely — only when dead or rotten branches appear. Blue myrtle cactus (Myrtillocactus geometrizans) is a branching candelabra-form cactus that needs minimal pruning. It branches naturally without cutting. Remove any branch that has rotted or dried completely, cutting cleanly with a sterilised saw. Do not prune to restrict size — it grows slowly indoors.

Use a sterilised pruning saw to remove a damaged branch flush with its junction to the main trunk or a healthy branch. Dust the wound with garden sulfur and withhold water for a week.