How to Prune konjaku?
No pruning required

konjaku · Amorphophallus konjac
Also known as: konnyaku; devil's tongue; snake palm; umbrella arum
Plant dormant tubers 10cm deep in late winter or early spring in a large container of loam-based potting compost. Grow in filtered light, water and feed while in active growth, and overwinter in warm, barely moist conditions
No pruning required