i used miracle grow potting soil(claims to feed your plants for up to 3 months) on my first grow. i just grew one plant that was a jillybean clone and it was already rooted in soil. when i got it, i transplanted into miracle grow and a 3 gallon pot and thats where she stayed through the whole grow. i fed her with foxfarm liquid nutrients after a couple weeks of being in the miracle grow and didn't have any nute burn. i dunno if i lucked out with genetics or what but i yielded 2.5 oz of some beautiful nug. i encountered fungus gnats later in the grow, and then i looked in the leftover soil in the miracle grow potting soil bag, and BAM like 25 fungus gnats come spewin out of it... no bull shit. i can't blame that directly on miracle grow but i've read someone else on here say that it is more susceptible to those type of bugs. i don't use the stuff anymore.