Drought Tolerant Front Yard - Converting Lawn to Soil

Step 5 Lay Out Cardboard, and Water

Lay the cardboard down on your lawn, overlapping them as necessary to make sure all the grass is covered. It doesn't have to be beautiful, don't obsess on it. There are lots of cardboard boxes that people are throwing away every day, you can always find more. This will eventually break down and become part of your soil, after it has killed the grass.
Water it after you've covered a swath, maybe ten feet of cardboard. Do as much as your back can handle. If you have enough help, you can probably get your entire yard done in a day. If you don't have help, just take it easy.