Topsoil

Sold by the yard. 

Topsoil is the nutrient-rich, uppermost layer of soil, teeming with organic matter, minerals, and microorganisms, crucial for supporting plant life by providing nutrients, water retention, and aeration for roots. It's a blend of sand, silt, and clay, often dark in color, and serves as the best medium for lawns, gardens, and new plantings, improving existing soil quality and fertility for productive growth.