To raise PH, I use hydrated lime at a teaspoon a gallon. I first water with plain water, then flush with the hydrated lime water, a few times, then finish with a final watering of slightly fertilized solution, about half strength of normal. Baking soda also works.my plants are growing in just a basic potting soil and i was just wanting to have a little more controll of the ph of the soil, i have a probe to test it easily. what can i do to safely raise and lower the ph in safe incriments.
im a big fat lier and am in no way breaking any law, i just want to fit in............somewhere. lol
A LITTLE tad of phosphoric acid at the time!!! This stuff is powerful. "Calcium carbonate"? Somebody already said baking soda.
Baking soda and calcium carbonate are two completely different things. Baking soda is sodium hydrogencarbonate NaHCO3.
I'm pretty sure it's actually sodium bicarbonate.
Calcium *bicarbonate is Ca(HCO3)2 and is way different than sodium bicarbonate NaHCO3, the later of which is common baking soda. The only real way to really judge how much you need is by buying a pH testing kit/tester. It all depends on what the original pH was/is. Also, I would not add baking soda straight to soil as a buffer, you will have a lot of excess sodium in there messing things up. Just add a little to your watering if you feel that your pH is low, don't add a lot, then wait and see if there is a positive result. pH tester/kit would really help you out, and cheap kits are like ten bucks at a pet store, grocery store, pool store, hydro store. If you just need to test the water and don't need the up or down chemicals, get the cheap ones at first.
