Much itself does not need water, but the plants in the mulch need the moisture and coolness the mulch helps to provide. When watering plants that have their roots covered in mulch, the water should run off the mulch and quickly be absorbed into the underlying soil. Once the soil has retained the water, check it periodically and maintain proper moisture levels.
About this Author
Living in Southern California, Shayne Ochoa has been writing professionally since 2005. Her articles have included topics on education, child development and gardening. She also holds a Bachelor of Arts degree in liberal studies from California Baptist University in Riverside.