Mulch.....what a great idea. It provides so many positive aspects to your garden other than aesthetics. Just the prevention of weeds that it provides makes it well worth adding to your garden. Think of your summer days in your garden being used as relaxation instead of weeding. Mulch cuts down on surface evaporation as well, so you are saving more of your free time and also saving resources. As it decomposes it improves the soil quality and encourages earthworm growth.