Cannabis nutrient and/or watering problems

[Kush.0g]

Hey first time grower here. My cannabis plant leaves are curling and I’m having some sort of nutrient issue. I’ve been ph testing and watering every 2-3 days using a moisture meter to test the soil. I’m using organic soil with coco choir. Any tips or advice helps.

 

[Bobcat.Branch]

Hey first time grower here. My cannabis plant leaves are curling and I’m having some sort of nutrient issue. I’ve been ph testing and watering every 2-3 days using a moisture meter to test the soil. I’m using organic soil with coco choir. Any tips or advice helps.

Are you watering every 2 to 3 days religiously, or because they need it? What are the results of your pH testing? What are you feeding your plant? How much? How often?

Every single detail you can provide will only help.

 

[HerbalEdu]

... also what coco to soil ratio ?

 

[Kush.0g]

... also what coco to soil ratio ?

1/3 coco

 

[Kush.0g]

Are you watering every 2 to 3 days religiously, or because they need it? What are the results of your pH testing? What are you feeding your plant? How much? How often?

Every single detail you can provide will only help.

Ph is 5.5-6, I’m using cronk nutrients, following there grow chart for feeding. And the moisture meter Indicates they need water every 2-3 days.

 

[RoadKillSkunkHunt]

Ph is 5.5-6, I’m using cronk nutrients, following there grow chart for feeding. And the moisture meter Indicates they need water every 2-3 days.

What kind of moisture meter are you using? Sometimes the simplest is best. This is the kind I recommend. No batteries. No fuss.

Your leaves look hungry. They can't feed because your soil pH is out of line. I realize some people do it, but mixing coco with an organic potting mix tends to throw everything out of balance and is likely part of your problem. The other? Overwatering ... which means watering too frequently.

 

[Bobcat.Branch]

Ph is 5.5-6, I’m using cronk nutrients, following there grow chart for feeding. And the moisture meter Indicates they need water every 2-3 days.

For 3:1 soil:coco I think pH of 5.5-6.0 may be a tad low. While I've not done a mix like that, I would probably shoot for 6.0-6.7, and primarily target 6.3-6.6 if you can get that accurate. Tough call!

My gut tells me they are lockout by out of band pH, and maybe exacerbated by over feeding. If the coco was unbuffered, it's going to be tougher to get calcium and magnesium to uptake, too.

The midribs and veins of the leaflets indicate overfeeding of nitrogen, but pH lockout could be preventing uptake across the board.

 

[Bobcat.Branch]

What kind of moisture meter are you using? Sometimes the simplest is best. This is the kind I recommend. No batteries. No fuss.

View attachment 2419294

Your leaves look hungry. They can't feed because your soil pH is out of line. I realize some people do it, but mixing coco with an organic potting mix tends to throw everything out of balance and is likely part of your problem. The other? Overwatering ... which means watering too frequently.

Bingo. We were typing at the same time!

 

[HerbalEdu]

like Bobcat.Branch have said 2/3 soil 1/3 coco mix should be treated like soil regarding pH: 6,2 to 7,3

and well moisture meter are not always reliable.

 

[Glomus]

Honestly messing around with the PH when your growing in mostly soil seems unnecessary. most good mixes are already PH balanced. you messing with the water PH every time you water just adds an element of inconsistency usually. Your soil PH is one thing, if its really off then you might need to correct it but if that's happening you have bigger issues then PHing your water.