Here’s another look at alternative mulches, after last weeks look at recycled glass mulch. In addition to glass, there are a few other recycled materials that give a different look than bark or gravel. Recycled rubber mulch is an interesting alternative mulch. It is available either as a simulated mulch, designed to look like wood chips, or in pieces looking like ground rubber. Consumer Reports looked at the benefits and differences of rubber mulch with traditional wood mulch.
There are some questions about the long term effects of mulches made out recycled tires that contain other chemicals that may leach into the soil.
There are other alternatives out there too, like recycled screws or nut/grain hulls.
American Rubber Mulch