What Makes Cedar Mulch Different
Cedar mulch is made from shredded or chipped cedar wood, primarily western red cedar or eastern white cedar. The natural oils (thujone and plicatic acid) give cedar its signature scent and two practical benefits: insect repellency and rot resistance. These oils repel ants, termites, moths, and some beetle species without synthetic chemicals.
When to Use Cedar Mulch
Cedar is the best choice for beds near your home’s foundation (the insect repellency matters most here), in humid climates where other mulches rot quickly, and anywhere you want a natural look that lasts 2 to 3 years without replacement. It’s also the top pick for vegetable gardens because the oils are natural and non-toxic to food plants.
Drawbacks
Cedar mulch costs $35 to $50 per cubic yard, roughly 30% more than dyed hardwood. As it decomposes, it can temporarily tie up nitrogen in the soil surface layer. This rarely affects established plants but can slow new seedlings. If planting annuals in freshly mulched beds, add a light nitrogen fertilizer at planting time.
