Crushed limestone can add nutrients and reduce ... In fact, flat boulders make good steps. These large landscape rocks are sometimes used to build retaining walls or tiered yards because their ...

and stains effectively without risking damage to your limestone. • Fabricoat Soft Bristle Brush from Amazon. Avoid anything abrasive like wire brushes, which could scratch the stone. • Garden ...

CONNOR: Good thinking! I read a bit about limestone on the bus journey. Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm ...