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There are several types of mulch, each with its own advantages and best uses. Organic mulches like wood chips, bark, leaves, and straw are great for retaining moisture and adding nutrients as they break down. They’re ideal for vegetable gardens, flower beds, and around trees and shrubs. Inorganic mulches like gravel, rubber, or plastic sheets don’t decompose but provide excellent weed control and moisture retention. They’re often used in pathways, playgrounds, and areas where vegetation isn’t desired. According to the [USDA Natural Resources Conservation Service](https://www.nrcs.usda.gov/wps/portal/nrcs/detail/nd/newsroom/features/?cid=nrcs141p2_002724), mulch also helps protect soil from erosion and compaction.