What is lawn thatch?

It's a layer of stems and the crowns of dead grass just above the soil. While clippings decompose quickly, thatch decomposes slowly. When it builds up, it creates a problem. Either use a de-thatching machine or a core-aerating machine to fix the problem.

Check your state and local codes before starting any project. Follow all safety precautions. Information in this document has been furnished by the North American Retail Hardware Association (NRHA) and associated contributors. Every effort has been made to ensure accuracy and safety. Neither NRHA, any contributor nor the retailer can be held responsible for damages or injuries resulting from the use of the information in this document.