Simply to add another side to the above suggestions...most people who grow any kind of plants in containers do wonderfully well in many different kinds of soil-less mixes, all without the living components found in a good healthy garden or forest soil. Microorganisms so essential in the outdoor soil system are not a requirement in containers.

rhizo, that's true. I've grown a couple of things with chemical fertilizers and supplements. You don't need, the microorganisms, but why kill them with chemicals when all they're doing is helping? IMO a more balanced diet is provided to the plants when microbial life is encouraged to flourish, however I do think that advancements in aeroponics and such are making chemical fertilizer use way more sustainable, so it is definitely a viable option. I'm experimenting with organic aeroponics and hydroponics in coco coir this summer.

Here is a link that might be useful: The Anticlimactic