We’ve chosen chopped limestone, natural brick or rock, to do all the edging with but there are many types of edging you can use. There’s steel bed edging - brick of course - different types of wood products. We’re choosing rock because that’s what we have available to us.
You want to use one type of material only, instead of changing back and forth from different types of material because it will affect the look of your design in that it’s not consistent throughout the project. So once you have your design done, you want to choose a material and stick with that one material, whatever that may be.