River Valley offers mulch products for every application! One cubic yard of product will provide 90-100 square feet of coverage. We recommend 2-3" total depth. Within 6" of the plant stem, keep mulch depth to a minimum. Mulches help retain moisture, keep root temperatures more consistent, and suppress weed growth. Replenish mulches once per year or as needed to maintain a neat appearance. Check out our handy Bulk Calculator on our home page.