Help a beloved gardener go easy on the planet and discourage garden pests; put some tree under the tree. Eucalyptus mulch comes from a renewable resource—a fast-growing tree species found in the southeastern part of the country. The natural oils in eucalyptus mulch also emit a pleasant scent that keeps plant-chomping bugs at bay.
$3.98 per bag (2 cu.ft.); Aaction Eucalyptus Mulch, from Lowes