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 ...

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 ...

You also have to be mindful of the cleaning products you use on this stone. Mild soap and water or a cleaner made specifically for limestone are best. (If you're curious, here are some other tips ...