How to Kill Grass With Plastic


Once you have decided where to site your new garden, the next step is to prepare the area for planting. If you plan to establish your garden somewhere in an existing lawn, you must eliminate the grass. There are many ways to permanently remove grass from a planting area. The least invasive and labor intensive of these is with plastic over the area. Depending on the type of plastic you use, this will not only kill the grass, but sterilize the soil as an added benefit.

Step 1

Water the area with 1 to 2 inches of water.

Step 2

Lay sheets of black plastic over the area of grass that you intend to kill.

Step 3

Anchor the plastic by burying the edges in 3 inches of moist dirt or weighing them down with heavy rocks.

Step 4

Re-wet the grass underneath the plastic once every three weeks until the grass is dead.

Step 5

Rake away the dead grass.

Things You'll Need

  • Black plastic
  • Trowel
  • Rocks
  • Hose


  • Dirt Doctor: Remove Grass to Start a Garden
  • Fine Gardening: Four Ways to Remove Sod
  • Earth Easy: How to Reduce the Size of your Lawn
  • University of California Cooperative Extension: Soil Solarization
Keywords: kill grass plastic, plastic grass garden, black plastic grass

About this Author

Emma Gin is a freelance writer who specializes in green, healthy and smart living. She is currently working on developing a weight-loss website that focuses on community and re-education. Gin is also working on a collection of short stories, because she knows what they say about idle hands.