Accidentally watered plants with Ph 11 water

[Growlearn24]

Its water soluble, you can do either but I put them directly in the water, doesnt take long for them to dissolve.

So if I was to dissolve them in water would it be the same suggestions 10 grams for 7L of soil. I think I’ve got about 15L of soil. The pots are 30L but I didn’t add enough soil in the beginning

 

[Eledin]

So if I was to dissolve them in water would it be the same suggestions 10 grams for 7L of soil. I think I’ve got about 15L of soil. The pots are 30L but I didn’t add enough soil in the beginning

Yes same dosage, you can find how many grams each spoon has in google to make it easier, I cant ever get them right in english. Its okay if its a little bit more or a little bit less.

 

[Growlearn24]

Yes same dosage, you can find how many grams each spoon has in google to make it easier, I cant ever get them right in english. Its okay if its a little bit more or a little bit less.

I’ve got jewellers scales so grams are much more preferred rather than winging it by using teaspoons

 

[Mothman]

How much would you recommend? I’ve been Googling around and each product says different amounts and some don’t have any user guides

I don’t see anything that requires adding Epsom. However, I do routinely add 1/4 tsp per gallon with each feeding/watering. Plants seem to love it. Provides magnesium and sulfur.

I, too, struggled with managing ph in my Fox Farm Ocean Forest (3 gallon pot) on this grow. Once runoff moved into the low/mid 5s I scratched in a couple of Tbsp of finely powdered dolomite lime and watered it in. It started to move the needle within a week. Now I’m consistently in the mid-6s for runoff.

 

[Growlearn24]

I don’t see anything that requires adding Epsom. However, I do routinely add 1/4 tsp per gallon with each feeding/watering. Plants seem to love it. Provides magnesium and sulfur.

I, too, struggled with managing ph in my Fox Farm Ocean Forest (3 gallon pot) on this grow. Once runoff moved into the low/mid 5s I scratched in a couple of Tbsp of finely powdered dolomite lime and watered it in. It started to move the needle within a week. Now I’m consistently in the mid-6s for runoff.

Okay thank you for that. I’ve got dolomite lime on the way. Going to use that for the first time and also the Epsom salts. Which would be better to do first?

 

[Eledin]

I don’t see anything that requires adding Epsom. However, I do routinely add 1/4 tsp per gallon with each feeding/watering. Plants seem to love it. Provides magnesium and sulfur.

I, too, struggled with managing ph in my Fox Farm Ocean Forest (3 gallon pot) on this grow. Once runoff moved into the low/mid 5s I scratched in a couple of Tbsp of finely powdered dolomite lime and watered it in. It started to move the needle within a week. Now I’m consistently in the mid-6s for runoff.

Its not just the nutritional value, they wash away salts and excess nutrients keeping your roots at its maxium potential. Many people use enzymes, chelates, epsom salts or flushing agents (even when its not flushing time once or twice per grow) to keep the soil and roots happy. Flawless finish from advanced nutrients (flushing agent) its basically sulfur and magnessium, the only difference is that epsom salts have more magnessium while flawless finish has more sulfur (which is probably even better for flushing)

 

[Eledin]

Okay thank you for that. I’ve got dolomite lime on the way. Going to use that for the first time and also the Epsom salts. Which would be better to do first?

You can add both at the same time, dolomite releases cal and mag slowly so it shouldnt hurt. Maybe skyp the next epsom salts dose. When you add the dolomite, mix it well with the top soil.

 

[Mothman]

Okay thank you for that. I’ve got dolomite lime on the way. Going to use that for the first time and also the Epsom salts. Which would be better to do first?

I don’t see any need for a bolus of Epsom, so I’d just do a couple pinches per gallon dissolved + any fluids going in starting next watering. (You’ll likely find it in a pharmacy.).

The dolomite I would get in there as soon as you get it. But go easy. Maybe start with a tablespoon scratched in and watered. Then wait 10-14 days and reassess. Maybe go with a second Tbsp at that time depending on the change observed. This was my first experience with dolomite. Here’s how they look now at 4 wks into 12/12
(EDIT: with an extended veg period to address some problems before flipping to flower.)

 

[Eledin]

I don’t see any need for a bolus of Epsom, so I’d just do a couple pinches per gallon dissolved + any fluids going in starting next watering. (You’ll likely find it in a pharmacy.).

The dolomite I would get in there as soon as you get it. But go easy. Maybe start with a tablespoon scratched in and watered. Then wait 10-14 days and reassess. Maybe go with a second Tbsp at that time depending on the change observed. This was my first experience with dolomite. Here’s how they look now at 4 wks into 12/12.

View attachment 1350327

The need to add epsom salts is because he might have unbalanced nutes in the soil because of how low the ph of his runoff was, not because there is a magnessium or calcium defficiency.

 

[Eledin]

Those plants are looking good baaby

 

[Eledin]

Dolomite is calcium magnessium carbonate, eggshells are calcium carbonate, it takes a while for them to start releasing any relevant ammount of calcium or magnessium. I make my own calcium by crushing eggshells 1 part vinegar 2 parts, that releases the carbon and neutralizes the acidity of the vinegar, leaving you with the calcium readily available and a ph of 7 .If you do it use a container twice as much as youre gonna make, its gonna foam when you mix it and it starts releasing the carbon. I use a few ml per liter with epsom salts and thats my calmag. If you dont do that, it can take months for it to start feeding your plants.

 

[Eledin]

I also add dolomite lime to the soil aswell as eggshell powder after sterilizing just in case, having the slow release in the soil is always a plus. And as mentioned before, helps with ph, and I reuse my soil so its being used sooner or later as food too.

 

[Mothman]

The need to add epsom salts is because he might have unbalanced nutes in the soil because of how low the ph of his runoff was, not because there is a magnessium or calcium defficiency.

Hmm, I’m rethinking my previous advice re epsom. If there is any buildup of salts in the pot, a larger initial dose of Epsom, as @Eledin suggested, could be a reasonable approach. I’ve not used high corrective amounts, so I can’t opine on quantity to use in that situation.

I still think there may be an unresolved underlying reason why low runoff ph (your initial issue) was present. But it could just be natural processes in the soil.

 

[Growlearn24]

I

Hmm, I’m rethinking my previous advice re epsom. If there is any buildup of salts in the pot, a larger initial dose of Epsom, as @Eledin suggested, could be a reasonable approach. I’ve not used high corrective amounts, so I can’t opine on quantity to use in that situation.

I still think there may be an unresolved underlying reason why low runoff ph (your initial issue) was present. But it could just be natural processes in the soil.

It makes me chuckle how I’m experiencing this on my first grow and it has you seasoned growers scratching your head..

So from my understanding I should give the Epsom salts a try first as the dolomite would take too long for it to be absorbed.

I want to try and fix this issue asap really.

I’ve been keeping a diary of what I’ve been doing each time I’ve fed or watered so if it helps you guys I can go back and find out exactly how much nutrients and the run off per plant is

 

[Growlearn24]

I

It makes me chuckle how I’m experiencing this on my first grow and it has you seasoned growers scratching your head..

So from my understanding I should give the Epsom salts a try first as the dolomite would take too long for it to be absorbed.

I want to try and fix this issue asap really.

I’ve been keeping a diary of what I’ve been doing each time I’ve fed or watered so if it helps you guys I can go back and find out exactly how much nutrients and the run off per plant is

 

[Mothman]

I

It makes me chuckle how I’m experiencing this on my first grow and it has you seasoned growers scratching your head..

So from my understanding I should give the Epsom salts a try first as the dolomite would take too long for it to be absorbed.

I want to try and fix this issue asap really.

I’ve been keeping a diary of what I’ve been doing each time I’ve fed or watered so if it helps you guys I can go back and find out exactly how much nutrients and the run off per plant is

Seasoned grower—hah! That’s not me!!

But getting back to basics: what exactly is the problem you’re trying to address? If it’s low runoff ph, a solid dose of Epsom will help if there is salt buildup in your soil that’s driving your ph lower. But if there are no salts built up, it’s just a magnesium sulfate nutrient. Not a bad thing.

If you’re trying to address the pale green tops, epsom may or may not help. Dolomite, OTOH, will raise your runoff ph almost immediately. So if you have a ph lockout of something, I THINK it would break that low ph stranglehold and help you return to normal. BTW, your recorded runoff ph figures don’t seem too alarming to me.

If the issue is the ph 11 watering and you’re trying to mitigate possible plant damage, that high ph water quickly dropped on contact with your low ph soil. There may be more you can do, but we’re getting out of my comfort zone.

 

[Eledin]

I think you might be overwatering, youre not suposed to have runoff every watering, your plants are not that big and it takes longer to dry even if the surface is dry. Take a stick or something and push it a few cm into the soil, if it comes wet dont water yet.

 

[Eledin]

That would also explain the yellowing of the leaves.

 

[Eledin]

Your pots are big, your plants are small, if your pots were smaller you would need to water more often, and when your plants are bigger you will need to water more often, but right now I think youre watering too much.

 

[Eledin]

Nute defficiency usually starts yellowing leaves from the bottom and works itself to the top, overwatering usually starts yellowing the new leaves so starts on the top. Might not always be the case but thats my experience.