What is the difference between topsoil and loam? Topsoil is the uppermost layer of soil, which is often removed during construction. It varies in quality and composition. Loam refers to the ...
‘It can be confusing to know what the difference is between topsoil and compost ... Gardening Guru for Miracle-Gro, explains, ‘Topsoil is a loam-based material (loam is the ideal soil ...