i just got some mirical grow potting soil from walmart ( aka stoner land) it said on the bag it can feed plants for up to 3 months i havent put the plants in it yet cause i dont have the room yet has anyone ever tried that kind of soil and if so how ell did it do? the bag also said it would help your plants grow up to TWICE the size of a plant in normal soil you think there is any truth to that with bud?