I always had good luck with it (I think, but I didn't have anything to compare it to) ... back in the 70's I read (memorized) Mel Frank's and Ed Rosenthal's Growers' Guide ... it said I wouldn't over-fertilize if I applied it as a foliar-spray, so every Sunday, the girls would be sprayed down with MG, plain water the rest of the week ... had nice dark green foliage :thumbsup: ... however, I can't say as to what it did for flowering buds, because, in those days, I knew NOTHING about growing pot, I was just smoking the leaves for a long time ... times change, LOL :jointsmile: