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 ...

Outdoor limestone surfaces can be a stunning feature in gardens, patios, and outdoor living areas. Renowned for its natural ...

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 ...