How to prune colocasia 'black magic'

Throughout the growing season for dead leaves; autumn before first frost for full cutback. Cut individual declining petioles close to the base with a sharp, clean blade. For autumn cutback in frost-prone areas, cut all stems to 5–10 cm (2–4 in) above soil before lifting or heavily mulching the corms.

Ongoing through the season; full cutback annually in frost-prone climates. Colocasia 'Black Magic' needs moderate maintenance pruning. Remove lower and outer leaves as they naturally yellow or brown — this is ongoing through the growing season. Cut damaged or storm-tattered leaves at the petiole base. In cold climates, cut all foliage to ground level in autumn before the corm is lifted or mulched for winter.

Cut individual declining petioles close to the base with a sharp, clean blade. For autumn cutback in frost-prone areas, cut all stems to 5–10 cm (2–4 in) above soil before lifting or heavily mulching the corms.