tstick
Well-Known Member
But, if the soil pH is way off, the plants will get sick before they can change anything. This is what I experienced on my last run. If I had waited for the plants or the soil to do what I thought they were supposed to do, I would have lost the entire grow.I get that, but plant roots exude acids to make some minerals soluble. The plants themselves can change the pH of the medium, to a point.