^^^^ I disagree. I recomend getting some 4 gallon grow bags or pots and then go out and buy some 100% organic soil. Just because some soil has fert in it dont mean its enough for the whole plant life. Think about this, the fert in the soil is delivering the same amount of nutes 24/7. Its a real weak dose but in some cases too much for young plant life. And plants can handle more food the bigger they get. If that fert in the soil is just enough not to burn your little, then what makes you think its gonna have enough till flower??? Especially outdoors when the plant is 3-5 ft tall before flower. So this is why i say get some 100% organic soil that has no fert in it. This way you can feed your own fert and know exactly how much your plant is getting. Because you dont know how much your plant is getting from the fert already in the soil. But if your looking for good fert then go here.
High Tech Garden Supply. They will have everything you can possibly need for an awsome price!!! Good luck man.