Garden Safe Organic Pot Mix Or (AN)

Well I went to the store, and bought a bag of this:

http://www.gardensafe.com/ProductCat...osePottingMix/

From what I was told at the store this also acts as food for the plants, because I saw some organic fertilizer, but was told I didn't need it, well little did they know I wanted to grow cannibis in this, LOL.

I'll place this into a plastic pot then put it outdoors for the plants to grow, so my concern is, is this pot mix ok to use, and then supplement it with some fertilizer food as well?

If so when would I add in fertilizer to use, at what stage of the growth, and how often would you fertilize, feed the plants?

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Then if it's not to expensive I was looking at Advanced Nutrients, man it sounds like these people are very knowledgeable with Doctors, scientists, etc.. This company is very impressive looking from what I also read over at Cannabis Culture a article that was written on them.

Has anyone here used some of their products?, and if from what I gather this product is for soil in pots, or something to help plants growing in soil:

http://www.advancednutrients.com/products/grosoil.php

And then this other product which looked like something for people that want a simple easy step plan:

http://www.advancednutrients.com/pro...nestepgrow.php

At this point all I'm trying to figure out for someone on a limited budget, that will be growing plants outdoors in pots, what's a good pot mix source, and then what you should use to fertilize, feed them, and how often?

Thanks