Mulch provides many advantages and can be composed of different materials. Common materials for mulch are woods chips, pine needles, pebbles, pulverized rubber, lava rocks, and fabric liners. Optimum mulch depth is about two inches. Never add more than four inches of mulch. Adding too much will promote root rot, disease, insect problems, and affect the pH of the soil.
Do research to ensure the right mulch is used for the landscaping, region, and plants. Using the right mulch and installation will help promote healthy plant growth, among these other advantages:
Wind, rain, and freezing water shifts and erodes the mulch. Check the mulch in all beds and around trees for the following:
Spring is the best time to apply new mulch. At this point plants are starting to grow but weeds have not germinated yet. Inorganic mulches should only need to be maintained once a year. Organic mulches might require multiple inspections and reapplications a year. Apply the new mulch on the thinner areas. Use a bow rake to spread it out. Mix up the older much with the rake to give it a fresher look.