Here is a link to several previous discussions on the problems with dyed mulches that you may find helpful. Just scroll down to the posts with the blue borders.

Here is a link that might be useful: Dyed mulch discussions..

Dyed mulches are not a problem to the environment but are usually quite garrish to look at. A mulch should be inobtrusive, not the focal point of the bed. A mulch should simply make the floral display of the bed better, not compoete for attention.

Thanks Guys, I guess if I had spelled dyed correctly I would have found the other posts when I searched. The Black mulch looks like dark lush dirt, beautiful. It is not a fake garden bed color at all.