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How Much Mulch?

The question of how much mulch to use should also be considered in the context of the type of mulch selected. Remember that each type of mulch has unique properties, which will interact with the plants. Once you select the type of mulch, you will also need to figure out how much to use.

Calculating Mulch Amounts

A mulch calculator is a handy tool for figuring out how much mulch to use. It provides blank fields where you can enter the length and width of the land in feet as well as the depth of the mulch, expressed in inches. For example, a 15 x 20’ garden (300 square feet of land), that is covered with mulch three inches thick, will require 2.78 cubic yards of mulch. One cubic yard is 27 cubic feet (3 x 3 x 3). So 2.78 cubic yards equals 75.06 cubic feet (2.78 x 27). This amount works out to around 38 bags of mulch with two cubic feet each. Certainly, smaller landscaping projects will require much less, but the calculator works the same.

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