Top soil over "dirty" soil Hi all. Based in the UK, South West area. I have an area that had bush style grass growing of which I have enlarged the area. I plan to remove some of the existing soil and replace with top soil. My question is, given there was grass (albeit wild grass) what depth of good top soil can I get away with? There are loads of little stones, the largest being around 2x2 inch. See photo of area. TIA Originally by u/Dita-Veloci on Reddit: https://tinyurl.com/2cvefzyk