Fill Dirt is the soil usually found underneath topsoil. It's ideal for raising planting beds, leveling off land and securing ground around retaining walls. This unscreened fill dirt lacks soil organic material, which means that it may contain sand, rocks, stones, and earth.
Excellent use for mulch, keeping the soil moist and preventing the top layer from getting too dry. Straw can also crush weeds and will compost over time improves the soil and protects your plants from drought stress and weeds.
Topsoil is the uppermost layer of soil (literally the top soil). It is where most of the Earth’s biological soil activity involving microorganisms occurs. It is darker in color because it is made up of minerals, organic matter, water, and air. Regionally formulated topsoil that contribute nutrients for healthy plant growth.