Sue Cullen asked 8 years ago
We have only shale and builders’ rubble in our back garden but want to lay lawn. Would we need topsoil/clay if we want turf/sod which already has about 1″ soil backing to take?
1 Answers
Gerry Daly Staff answered 6 years ago
Grass lawn needs at least 15cm, ideally 30cmm of good topsoil.
More at: https://gardenie.wpengine.com/gerrycategory/soil-lawns/?id=5592
If you cannot get that without raising the lawn level too much, you will have to take out rubble and then lay top-soil. Although this is onerous, it will give the best result in the end.
