Our Premium mulch starts off as natural hardwood logs, and then we process it three times through our wood grinder. The mulch sits at least two months between each grind. During this time, the mulch ages as temperatures reach over 150 degrees. This process gives the mulch its rich chocolate brown color and ensures it is free of bugs and fungus. The fine, fibrous texture allows the mulch to spread further, smoother and look aesthetically pleasing. This premium mulch is excellent for retaining moisture and suppressing weeds. Covers 160 sq. ft. at 2–3" thick