Hi everyone. My name is fatsean and I have a pH problem. My potting soil likes to go acidic after a few weeks of flower. I use tthis stuff, it's got the best texture of the slim selection of locally available non-fertilized soils.

I'm currently working with powdered Lime product to address my pH issues. (Thanks Rusty!) I am experimenting with mixing quantities of it into my soil, and I am also trying to top-dress with it to address pH lockout issues noticed in flower. What happens is the fans start to go yellow and drop at about week 3 or 4 of 12/12 lighting and the plant's production slows over time.

So far I either put too much into the soil, and my poor plants look sick in a 7.0+pH medium, or I don't put enough into the soil and by the time I notice the lock-out, top dressing with the stuff never seems to get the soil back into happy pH zone. 2TBSP/gallon of soil seems too much, but a heaping TBSP/gallon of soil seems to little.

Should I just mail order soil? Is there a pre-made product that does NOT go acid in mid-late flower? It seems so wasteful to ship soil, but I'm open to new ideas. My FoxFarm nutes have alot of ammonium compounds for the Nitrogen, and the soil producer said those compounds make the soil go acid faster. Maybe a different fertilizer?
FatSean Reviewed by FatSean on . Ways to keep soil from going acid. Hi everyone. My name is fatsean and I have a pH problem. My potting soil likes to go acidic after a few weeks of flower. I use tthis stuff, it's got the best texture of the slim selection of locally available non-fertilized soils. I'm currently working with powdered Lime product to address my pH issues. (Thanks Rusty!) I am experimenting with mixing quantities of it into my soil, and I am also trying to top-dress with it to address pH lockout issues noticed in flower. What happens is Rating: 5