The Q&A Archives: Building a Garden on Chemically Treated Lawn

Question: I would like to start a small vegetable garden with raised beds in an area of my yard that has been treated by a lawn service last year and once this year. I am concerned about the chemicals that may still be in the soil. Could I cover the ground with plastic and build the raised bed on top of it? Or do you have a better suggestion? If I did cover the ground with plastic and then a raised bed, how deep should the bed be? L. Stern Columbus, OH

Answer: The first question is what chemicals did the lawn service apply? If they are of the type such as preemergent herbicides that breaks down quickly in the soil, then you can plant in that area this spring. Find out this piece of information first, before you build a raised bed. If you want to build the bed, laying the plastic on the soil and building up is fine. For vegetables the bed should be at least 10-12" deep. filled with loamy topsoil amended with compost. Let me know what chemicals the lawn service applied and maybe I can help you determine whether you have to build the bed.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by cocoajuno and is called "Here's looking at you."