They stay in place and will improve the soil as they decay. Inorganic or permanent mulches include gravel, brick chips, and crushed stone. They are usually applied one time, often over a fabric layer.

Trying to decide what mulch to put in your flower bed? Find out the worst type and two better options, according to House Digest's Master Gardener.

Opting for a permanent mulch product like Gardener's Supply Company Recycled Rubber Walkway can do more than just enhance your landscaping.

If you are most interested in a relatively permanent mulch with effective impact on weed prevention and water conservation, using some of the inorganic mulches may work well.

The only fade-proof mulches are permanent mulches, such as stones. Color-enhanced mulches keep their color longer than other wood mulches.