Will a soil pH of 6,0-7,0 be ok for a super auto? I went to the store garden center today and they had a really good deal on soil there. Me and my friend will buy 400 liters for 67 euros or 88 dollars. I think that´s a really good deal. That´s about 100 gallons of soil. The NPK was ok too. But i will add Bat Guano and worm castings, plus other stuff like perlite. After i add the perlite and wormcastings the 400 liters of soil will cost about 120-130 dollars.
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