This may seem to be a dumb question but here it goes, do any of you use compost over top of old mulch? I have never seen this until yesterday. Everyone around here just uses hardwood mulch. I have seen compost mixed with the soil but never put on top of the old mulch and left as the finshed product. I was just wonder why this was done and what are the benifts and/or disadvatages of this? And if it was left as the finshed product shouldn't the old mulh have been taken out? BTW when I say compost i am no talking about straight leaves or grass clipping i am talking about the fine shreded black stuff.