It's Hawthorne Gardening which is Scotts-MiracleGro.
Having said that, it's currently only available at Home Depot in MI, CO, and WA according to the website. It's not available where I live, but I look forward to seeing some documentation - can't be that bad can it?
there sure is more organic choices....way back their was fish and espoma that's it...now theres several brands including earth juice in some locations...yeehaw..earth juice rules