Fill dirt is used to fill in large areas such as large holes, trenches or deep low spots. It is the best option for these trouble spots because it is affordable and dense. Fill dirt tends to be made up of coarser sediment. It is typically a mixture of clay, sand, small pieces of rock and root material which makes it ideal for holes and muddy spots.
Unlike topsoil, fill dirt does not have enough nutrients for plant life. It is not meant to be a substitute for topsoil. Even grass will struggle to grow in it. In most cases, fill dirt should be used along with topsoil especially if you are using it in your lawn or garden. Topsoil should be spread over the fill dirt so that plants can take root.
