Gorilla Hair Mulch
This material is made of the fibrous bark of redwood trees. It is a great weed blocker. It keeps great moister and it slows down evaporation. This material will decompose slower. Great for high wind zones. It is recommended to use 2-3 inches otherwise it will stop water from reaching your soil.
A mulch is an excellent source to nourish your soil with great nutrients that will favor your plant's health. It is great to suppress weeds as well as for maintaining moister that will slow down evaporation saving you on expensive water bills. It is affordable and a great option for ground cover.