You can take a few extra steps to make sure that your pruning is both successful and healthy. As with most woody, flowering trees,
Rose of sharon should be spoiled with a little extra water over the following week so that it has the means to heal its wounds.
Rose of sharon is a tough cookie, so it can take care of itself for the most part after the annual snipping. You can also fertilize just before or after pruning, which gives
Rose of sharon a little vitamin boost that can provide it the nutrients needed to better protect itself from any nearby pathogens or diseases. If you have other plants or trees nearby that are affected by diseases such as fungi or pests, you can also apply honey to the wounds just after pruning to create a sort of natural bandage.