What is loam?

All soils are a mixture of mineral particles (sand, silt, and clay) and organic matter. A loam is a soil with a good texture for growing grass and other plants based on its balance of sand, silt, and clay. With proper care, this soil holds moisture well and can support a luscious green lawn.

Image source: https://commons.wikimedia.org/wiki/File:USDA_Soil_Texture.svg