I know this question is like 1-2 years old, but I came across it during my search for an alternative to wood mulch (I hate dealing with it every year!), so I figured I'd contribute my 2 cents.
Rubber Mulch, I found, looks almost identical (better in some cases), and once you put ti down once, you can forget about it almost forever. The site I bought mine from says 12 years, so maybe I'll check back in 2025 and let you know how it works out. If it doesn't last that long, they'll be hearing from me, because it is more expensive (about $8/bag instead of $4). If it saves me from having to do this every year, though, I'd gladly pay triple!
I bought mine from Pinnacle Rubber Mulch, but I was told it is now called GroundSmart Rubber Mulch. After I ordered online, I found out that they sell it in stores, so check to see if you can get it locally to save on shipping (wish someone had told me that!).
Good Luck and sorry for the question resurrection.