Quote Originally Posted by stinkyattic
The major difference between topsoil and potting soil is that topsoil virtually never contains a soil lightener, whereas potting soil comes pre-mixed with perlite.

Kush referred to that stuff as being 'hot'- that means too high levels of nutrients.

I've grown successfully in a 50/50 mix of composted manure and perlite, that's it. I got some burn at first, but nothing outrageous.

The last time I mixed soil, I used a bag of topsoil a friend had left over from her lawn, a bag of composted manure, and a bag of perlite.

So to make any soil into potting soil, you need to add perlite or vermiculite.
very good info,i appreciate that.thats good i didnt buy that shit.I bought some organic potting soil and it seems to be kind of on the heavy side ill go buy some,perlite that is,thanks
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