Drawbacks of Cedar Mulch
Fresh cedar mulch uses the soil’s nitrogen as it decomposes, making that nitrogen unavailable for the plants it is protecting. This nitrogen issue affects only the soil in direct contact with the mulch and will not affect the plants as long as the mulch is not mixed into the soil. To avoid possible nitrogen depletion, periodically fertilize plants mulched with cedar.The Disadvantages of Cedar Mulch
Although cedar mulch breaks down and is organic, it takes longer to break down than alternative bark mulches or wood mulches. Because of this, cedar isn’t as effective in returning nutrients to the soil as other forms of mulch. Cedar mulch does discourage insects from moving in, but it has to be remembered that not all insects are harmful. Cedar mulch may discourage beneficial insects as well as traditional pest from entering the garden.
go with Pine chips.IMO they are better OR....
The cypress mulch industry, in its eagerness to market its product, has suggested that you cannot do better than using cypress mulch in gardens. Many of the claims of its superiority turn out to be myths. For example, contrary to reports you might see in commerce, cypress mulch is no better than other wood chips at keeping down weeds and insects.
Pine chips are just as good and do not endanger an ecosystem. In the long run, leaves and straw from your yard or compost are usually better mulch choices for your plants.
