Mulches are best used around trees, shrubs, and in garden beds where you won’t be doing a lot of digging, like front walkways and foundation plantings. Mulching plants is both functional and decorative. Mulch typically is an organic material spread on the soil surface to protect roots from heat, cold, and drought, and to provide nutrients to plants as it decomposes. Depending on your needs, barks and straws can be options, too!