How does putting down peat moss promote grass to grow?

Question

My lawn care service recommended that I put down peat moss on the bare spots of my lawn and this should encourage the grass to spread and fill in the bare spots. Do I need to do any prep work before laying down the moss?

Answer 1

The peat adds organic matter to the soil, and increases water holding capabilities. This article will tell you more: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/peat-moss-information.htm
You might dig up the soil a bit (1/2 - 1") on the bare spots, then put down your moss, put a little soil on top of it, then water will, the purpose being to keep the peat from blowing away.