Monitor the soil in which the hibiscus is planted, checking to make sure it is moist enough. Hibiscus does well in many dry geographic areas, so if the soil is too dry, loosen it with the shovel and mix in some mulch.
Fertilize the soil that contains the plant. Wearing gloves, sprinkle a granular fertilizer into the surrounding soil each spring. Water the soil around the plant deeply after fertilizing, as this will help the fertilizer to take hold and to sink down into the soil where it can provide nutrients.
Water the plant each morning using a watering can to administer the water slowly to the soil. Do not water the hibiscus if it has recently rained and the soil is moist, as overwatering can damage the roots.
Prune or pinch back the plant's stems with pruning shears just above the leaves or above the joints where old leaves were located. This will help to promote new growth within the plant.
Snip off dead leaves and flowers with pruning shears and clear away any dead leaves that have fallen to the soil surrounding the plant. Do not allow the dead flowers or leaves to decompose and mix into the soil, as it may have been disease that killed them.