I have a 3 story high pine tree in my front yard that barely has any grass growing around it. The area I am looking to landscape from the fence to the side walk is approximately 15x 15. I am interested in learning what I can use to cover the area so that there is no longer any grass showing as there is not much there to grow anyways. I am thinking to use mulch as it is natural product. I also need some advice on how to do it. eg. do i need to put down a membrane to prevent any grass from growing, what is the best type of mulch to use, etc.