There are a few ways to Xeriscape over grass. One way is to remove the sod and put down a weed barrier or landscape fabric. You can then put down a layer of mulch, rocks, or gravel on top of the fabric. Another way is to leave the sod in place and put down a layer of mulch, rocks, or gravel on top of it. Either way, be sure to water your Xeriscape well so that the plants will become established and will not need to compete with the grass for water.

You can Xeriscape over grass by removing the grass and replacing it with rocks, mulch, or gravel. Another option is to simply keep the grass and use drought-tolerant plants in your landscaping plan.