I think this stuff is new this year, or I’ve never noticed it before - Ordinary shredded wood mulch tinted dark black. Ho Depot had two brands, a cheepie that had a lot of gray, and a more expensive name brand (Scott’s I think) that was jet black. I bought one bag to try out near the roadbed of the railroad It looks great, just like dirt from a distance!
I’ll try and get some pictures in between raindrops this weekend, before the annuals I just planted die
Jon