Hello. I had the water company dig up a part of my front and now there is a great big ugly grey patch. I would really like to put down some edging and fill with stones (see pictures). Is there anything I can use so that they don’t go out the front? Or any other way I could cover this area up? Was thinking maybe concrete paint? Apologies for the state of it it’s been neglected and is getting weeded and power washed tomorrow!