Cedar Mulch for Termite Prevention: Does It Work?

Cedar chips and oil repel many insects—termites, ants, fleas, ticks, chinch bugs, pillbugs, and moths. However, University of Nebraska Extension warns that cedar's natural resins leach over time, after which termites will readily consume the mulch. Keep any wood mulch at least 12 inches from foundations.

Commercial products like CedarCide offer refined cedar-based termite repellents, but they're not permanent solutions and generally repel rather than kill. For active infestations, professional treatment is more reliable. For prevention around a sound structure, cedar mulch is a smart, low-toxicity addition to an integrated approach.

Combine with good drainage, no wood-to-soil contact, and regular inspections. Organic perimeter treatments work best as part of a system, not a standalone silver bullet.