Hoyas only need pruning if they are outgrowing their space or becoming too leggy. To prune a Hoya, simply use a clean, sharp pair of shears or scissors to cut back the stems to the desired length. Make the cut just above a node or leaf to encourage new growth. You can also remove any dead or yellowing leaves to keep the plant looking neat and healthy. Pruning should be done in the spring or summer when the plant is actively growing.