Well Rotted Means Well Suited for Mulch

Q: I have a pile of sawdust from grinding a pine tree stump. It is now well rotted. Can this be used as mulch? 

A: The key words are ‘well rotted.’ As long as you can’t see individual chips in the pile, you can consider it well rotted and perfect for mulch, or it can be dug into the soil to loosen it. If you do see chips, the material can be used as mulch, but not dug into the soil. Fresh wood dug into the soil robs nitrogen from nearby plants.

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