I think they try to hide it honestly with all the organic craze but if you go on there website it says starter fertilizer for usa, wouldn't want to buy it in Canada that is where it has the 9 month fert that type is trash and that is the negative reviews you will read, this stuff just enough to get it started 2 to 3 weeks most likely 3 weeks. With the nutes I have always gone light and I contribute that to a lot of my success, these autos really don't like a lot of nutes and a lot of it is commercialism same with rebuying soil especially soiless mixes like the pro-mix, roots organic and coco unless you have bugs in it or mold there is no point there are people reusing soil from the 70's and many medical users that are older broke hippies doing the same thing.