crops or flowers from annuals or tender perennials that need plenty of water and nutrients, you should remove stones from the root zone – which means the top 12in (30cm) of soil. Do remove stones from… Lawns Remove all stones and rake well before seeding or you will get a bumpy lawn that throws up stones and may break your mower. The point is that they contain the best soil. Be meticulous. Don’t bother when… Turf laying Ready-made lawns need only the most cursory stone-picking. They will cope.
Red zone: bell peppers pose a puzzle