What Is Best Soil pH?

Curious to know your opinions on the pH range you have found that gives good bud when growing organic?

6.4...fight me

Here is an interesting article about some new research results on the optimal pH for cannabis.

mudballs said:

6.4...fight me

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I hear 6.5 is the sweet spot for soil grow

Organic section......What is pH?

One of best things about growing organically in soil, is not "caring" about ph.

You do have to care a bit about ph in soil. If you are putting in nutes with a ph below 5.0 or above 7.6, there could be trouble. I'd shoot for around 6.5 ideally.

Yeah, I agree.

Soil pH is really important, so don't mess it up.

I don't know the pH of my dirt, but it's "working" so I don't care exactly. But I know really acidic stuff like molasses or really alkaline stuff like silica will mess shit up if I use too much.

So I only use a little of those things.n

I grow veganics PH doesn't matter.

DoobieDoobs said:

One of best things about growing organically in soil, is not "caring" about ph.

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Agreed!

farangar said:

I grow veganics PH doesn't matter.

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Agreed!

If you're growing in "living" organic soil, there's no need to ph the water. The microbes are just going to adjust it in the soil to what they want anyways. Kinda a waste of ph adjusters imo.

Hollatchaboy said:

If you're growing in "living" organic soil, there's no need to ph the water. The microbes are just going to adjust it in the soil to what they want anyways. Kinda a waste of ph adjusters imo.

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Except that if you pour super acidic stuff in your soil you may kill off half of your micro herd. Besides, don't you think your microbes have better things to do than spend their energy adjusting ph for you? It might sound like a joke, but seriously, microbes don't like big ph swings either. Best to keep your input in range.

PJ Diaz said:

Except that if you pour super acidic stuff in your soil you may kill off half of your micro herd. Besides, don't you think your microbes have better things to do than spend their energy adjusting ph for you? It might sound like a joke, but seriously, microbes don't like big ph swings either. Best to keep your input in range.

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Good points. Amazingly after adding nutes to my water it’s always around the 6-7 mark depending on how strong it is.

I always check my soil pH before growing with a professional pH probe.

Everytine my soil pH is low around mid flower it goes to shit.

Perhaps it’s a case of nutrients antagonising one another due to the pH being out of range. certain nutrients are easier than others to absorb so there will be excess of particular elements building up over time which further drops the pH of the soil (excess P/K for example)

My practice now is to feed at the first signs of hunger rather than trying to cram it down their throats

PJ Diaz said:

Except that if you pour super acidic stuff in your soil you may kill off half of your micro herd. Besides, don't you think your microbes have better things to do than spend their energy adjusting ph for you? It might sound like a joke, but seriously, microbes don't like big ph swings either. Best to keep your input in range.

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I don't pour anything super acidic in my soil. Humics and fulvics maybe, but at a very low rate.

I should have specified that I was talking about the SOIL pH. It needs to be in the correct range to grow good cannabis.

My question IS what SOIL pH have you found that gives good bud?

For the most part, if soil pH is good, the water pH does not matter, but there are exceptions.

The3rdMan said:

I should have specified that I was talking about the SOIL pH. It needs to be in the correct range to grow good cannabis.

My question IS what SOIL pH have you found that gives good bud?

For the most part, if soil pH is good, the water pH does not matter, but there are exceptions.

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We understood exactly what you meant. 6.5.

Hollatchaboy said:

I don't pour anything super acidic in my soil. Humics and fulvics maybe, but at a very low rate.

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Do you know what your input ph is?

My cooked supersoil before starting a run seems to naturally be set at about 6.5. It tends to buffer upwards after watering (towards 7 or 7.2)

ComfortCreator said:

My cooked supersoil before starting a run seems to naturally be set at about 6.5. It tends to buffer upwards after watering (towards 7 or 7.2)

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Do you have hard water?