Zoysia grass (Zoysia spp.) Produces a dense lawn with a and good heat and drought tolerance. It generally grows in U.S. Department of Agriculture plant hardiness zones 6 through 9. A program of sand or, even better, a combination of equal parts sand and compost or topsoil, is helpful once you are attempting to correct little dips or low spots in a yard. Timing the application of sand well helps ensure the turf easily withstands the application as well as your attempts to adjust low places do not result in unsightly bare spots.
Gradual Correction is Key
Spread out no longer than about 1/2 inch of sand over low spots in mid to late spring once the zoysia grass is actively growing and it is going to quickly grow through the added material. Use a push broom to sweep the sand mixture off of grass blades and then down the the soil’s surface. If the lawn remains uneven, make a second application of the sand mixture at least four weeks later. If you need to add more, wait until the following spring to include it — apply no more than 1 inch of sand or sand mixture to low spots from the zoysia grass yard each year.