Ok guys, this is my last question (I hope) for the day. I have a small area in between my porch and my lawn is an open area that hold 4 shrubs. I plan to switch the mulch that's currently there. Here are my questions: If I dig up the mulch is there anything else underneath? Is mulch just for appearance? Obviously dirt is beneath but is there anything else? I need to know if I can just dig this up and throw some new mulch on top. Also what color/type of mulch would look best for a red brick house. I wanted red mulch but I currently have a redbrick ring around my tree and plan to add a redbrick border around the shrubs. (this will be temporary til I can get the bullet edgers.) I was thinking a dark brown or maybe black. But I do not know the difference between them. Again I thank you guys for the assistance.