Organic gardeners prefer natural methods of killing grass. Avoiding chemical herbicides not only provides a safe, affordable way to remove grass without harming children or pets, but it also allows gardeners to plant grass seed or lay sod sooner, without having to wait for chemicals to dissipate from the soil. Whether you want to clear a patch of grass for a new flower bed or eliminate invasive grass such as crabgrass, use old newspapers as a natural way to kill grass.
Clear the area covered with unwanted grass of furniture, toys or any tools or equipment.
Mow the grass as short as possible. This will ensure the newspapers lie flat and even on the ground and maintain good contact.
Wet the area lightly. Your goal is not to moisten the soil, but to wet the foliage so newspapers adhere better and do not blow away or shift easily. An alternative is to wet the newspaper layers as you lay them down, but they will be prone to tearing and may be difficult to work with.
Stack a layer of 8 to 10 pages of newspaper over the grass. Lay another layer next to the previous one, overlapping the edges by 3 to 4 inches. Continue stacking layers over the grass, ensuring each layer overlaps the adjacent layer on all sides.
Spray water on the newspapers so they settle in place. A light spraying will suffice. Spread a 4-inch uniform layer of mulch over the newspapers to weigh them down. This will ensure no light or air reaches the grass, smothering it so it dies. The grass will die in a month.