Where should proper planting of turfgrass occur?

Proper planting of turfgrass should occur in topsoil that provides necessary nutrients. Topsoil is the upper layer of soil that contains organic matter, minerals, and nutrients essential for the healthy growth of plants, including turfgrass. This layer supports root development and helps retain moisture, which are critical for establishing a strong turf.

Topsoil also typically has a balanced pH and sufficient microbial activity that fosters a healthy soil ecosystem, promoting nutrient availability and absorption. By planting turfgrass in topsoil, you help ensure that the grass has access to the nutrients it needs for vigorous growth, drought resistance, and overall health.

The other options do not provide an ideal environment for planting turfgrass. Gravel or sand does not retain moisture or nutrients effectively, making it unsuitable for grass growth. Subsoil may be rich in certain minerals but often lacks the organic matter and structure necessary for supporting turfgrass. Areas with standing water can lead to root rot and other issues due to poor drainage and excess moisture, which are detrimental to turfgrass health.