I bought a small home to renovate, the landscaping is nice, I've added some bushes and flowering plants. However, the existing rock which is "river rock" 3-4" in size is not attractive and I don't wish to add to it. Ripping it all out isn't cost effective and not something I wish to take on.
Would it be OK to cover the rock with several inches of mulch? I think it would look better, what are the pros & cons.