Yellow leaves water or nutrients?

Mojomomo · Jul 14, 2024

Common problem, but how would you know if it's water or nutrients when you get some yellow leaves?

Plant in 15 gal plastic pot outdoors. Straight sun no shade. We're coming out of 5 day triple digits, last 4 days low 90's. Windy as well but I've used shade cloth around outside of pot to deter that. Growing in soil, a raised bed mix, goat straw compost/ perilite. The entire bottom of pot has drilled holes, large ones and it's sitting on a pallet. I've noticed wilted tops and think it needs water. Today I noticed couple large fan.leaves were yellow, and a couple small ones as well near bottom of plant. Otherwise, the plant color looks ok.

What's going on with this? Thnx. -)

BB22 · Jul 14, 2024

The leaves taco ing and rolling over make me think heat stress

Lower leaves yellow, mobile nutrients, moving

Beachbumm · Jul 14, 2024

Mojomomo said:
Common problem, but how would you know if it's water or nutrients when you get some yellow leaves?

Plant in 15 gal plastic pot outdoors. Straight sun no shade. We're coming out of 5 day triple digits, last 4 days low 90's. Windy as well but I've used shade cloth around outside of pot to deter that. Growing in soil, a raised bed mix, goat straw compost/ perilite. The entire bottom of pot has drilled holes, large ones and it's sitting on a pallet. I've noticed wilted tops and think it needs water. Today I noticed couple large fan.leaves were yellow, and a couple small ones as well near bottom of plant. Otherwise, the plant color looks ok.

What's going on with this? Thnx. -)

What's your medium, what are you feeding, what's your soil pH, what was your last runoff readings, have you checked for mites?

Mojomomo · Jul 14, 2024

BB22 said:
The leaves taco ing and rolling over make me think heat stress

Lower leaves yellow, mobile nutrients, moving

Thnx. It was 95f yesterday and windy. I don't really understand "mobile nutrients, moving" the lower leaves yellow.

Mojomomo · Jul 14, 2024

Beachbumm said:
What's your medium, what are you feeding, what's your soil pH, what was your last runoff readings, have you checked for mites?

Medium is Kellogg's raised bed soil (Recycled forest products, coir, perlite, dehydrated poultry manure, composted poultry manure, hydrolyzed feather meal, peat moss, kelp meal, worm castings and bat guano) so it says.

Fed fox farm Veggie 24-14-11 about 1-1/2 weeks ago. About 1 Liter

Soil pH is 6
Runoff reading don't know (pH of water runoff?)
No mites I see otherwise plant looks healthy.

BB22 · Jul 14, 2024

This is a pic that explains

LoveGrowingIt · Jul 14, 2024

Mojomomo said:
I don't really understand "mobile nutrients, moving" the lower leaves yellow.

Some nutrients can move within the plant and others cannot. For those that can, plants move them to areas where they're most needed. That's usually from older, lower leaves to actively growing parts of the plant. Nitrogen, for example, is a mobile nutrient.

Beachbumm · Jul 14, 2024

Mojomomo said:
Medium is Kellogg's raised bed soil (Recycled forest products, coir, perlite, dehydrated poultry manure, composted poultry manure, hydrolyzed feather meal, peat moss, kelp meal, worm castings and bat guano) so it says.

Fed fox farm Veggie 24-14-11 about 1-1/2 weeks ago. About 1 Liter

Soil pH is 6
Runoff reading don't know (pH of water runoff?)
No mites I see otherwise plant looks healthy.

If This were my plant...

The way the new growth is twisting like that I'd recommend checking UNDERNEATH the leaves for mites with MAGNIFICATION, cuz some mites are almost microscopic

If I was positive there were no mites then I would Flush the soil heavily w/plain 6.8 water, check the pH of runoff & post it here

the last gallon of flush would be nutrients at 600-700 ppm

Edit: your not feeding nearly enough btw

Mojomomo · Jul 14, 2024

BB22 said:
The leaves taco ing and rolling over make me think heat stress

Lower leaves yellow, mobile nutrients, moving

Should I shade it when temps are in upper 90's?

BB22 · Jul 14, 2024

I grow indoors. I’m sure other outdoor people will be around.

Mojomomo said:
Should I shade it when temps are in upper 90's?

Mojomomo · Jul 14, 2024

LoveGrowingIt said:
Some nutrients can move within the plant and others cannot. For those that can, plants move them to areas where they're most needed. That's usually from older, lower leaves to actively growing parts of the plant. Nitrogen, for example, is a mobile nutrient.

So does that mean the yellow leaves have been stripped of nutrients and as you said "moving" to the other parts of plant? Lol (teaching elementary school). -) is that a sign of needing food?

Mojomomo · Aug 12, 2024

Beachbumm said:
If This were my plant...

The way the new growth is twisting like that I'd recommend checking UNDERNEATH the leaves for mites with MAGNIFICATION, cuz some mites are almost microscopic

If I was positive there were no mites then I would Flush the soil heavily w/plain 6.8 water, check the pH of runoff & post it here

the last gallon of flush would be nutrients at 600-700 ppm

Edit: your not feeding nearly enough btw

I don't have a digital oh meter, just a meter type. Ph is at very high end of 6 still on color bar.
I just got a tds meter. My water is well water and I had it tested this year. I have salt and a bit of Silca in water.

Water in a bucket reading.
544 ppm.
The us/CM is 1088 the temp was 73f.

The runoff ph after watering until it flushed out bottom of pot was still at end of 6 mark.
The ppm was 1138
EC is/cm was 2276.

I did a lot of reading about Tds meters, ppm, EC etc. But still don't understand how you come to a result re feed, etc. by the readings.

I fed this plant with miracle gro this week, only a gal of weak mix. The medium is a mix of Kellogg's organic raised bed soil, plus composted goat poo and straw that decomposed in a year. These numbers are high! Right? Which means?

Beachbumm · Aug 13, 2024

Mojomomo said:
I don't have a digital oh meter, just a meter type. Ph is at very high end of 6 still on color bar.
I just got a tds meter. My water is well water and I had it tested this year. I have salt and a bit of Silca in water.

Water in a bucket reading.
544 ppm.
The us/CM is 1088 the temp was 73f.

The runoff ph after watering until it flushed out bottom of pot was still at end of 6 mark.
The ppm was 1138
EC is/cm was 2276.

I did a lot of reading about Tds meters, ppm, EC etc. But still don't understand how you come to a result re feed, etc. by the readings.

I fed this plant with miracle gro this week, only a gal of weak mix. The medium is a mix of Kellogg's organic raised bed soil, plus composted goat poo and straw that decomposed in a year. These numbers are high! Right? Which means?

"Water in a bucket reading.
544 ppm"

Wow! I've never heard of a ppm that high, heard you shouldn't use it past 200ppm

My well is 60's to 90's ppm, so I'm not sure how you would use water like that, hope others can chime in cuz that's out of my wheelhouse

Newbgrower1 · Aug 13, 2024

my well water is pretty high too 450 ppms. I run my water through a Brita filter before using it. I used to get cal mag deficiency middle to late flower because my water was high in calcium. After I started using the filtered water I havnt had an issue. I

Mojomomo said:
So does that mean the yellow leaves have been stripped of nutrients and as you said "moving" to the other parts of plant? Lol (teaching elementary school). -) is that a sign of needing food?

yes if the lower fans are yellowing they probably need some food. If it goes long enough the yellowing will start at the bottom and start creeping up towards the top. If it’s only one or two leaves I would pic them off and wait a lil to see if it’s still spreading. If it’s a lot. Try a little feed and see if that helps in a few days. About the twisting, I’m pretty sure it’s heat stress. Mine was doing the same on the hot days. But without seeing it in person I couldn’t be sure. Could be bugs too.

Beachbumm · Aug 13, 2024

Mojomomo said:
I don't have a digital oh meter, just a meter type. Ph is at very high end of 6 still on color bar.
I just got a tds meter. My water is well water and I had it tested this year. I have salt and a bit of Silca in water.

Water in a bucket reading.
544 ppm.
The us/CM is 1088 the temp was 73f.

The runoff ph after watering until it flushed out bottom of pot was still at end of 6 mark.
The ppm was 1138
EC is/cm was 2276.

I did a lot of reading about Tds meters, ppm, EC etc. But still don't understand how you come to a result re feed, etc. by the readings.

I fed this plant with miracle gro this week, only a gal of weak mix. The medium is a mix of Kellogg's organic raised bed soil, plus composted goat poo and straw that decomposed in a year. These numbers are high! Right? Which means?

Tired of trainwrecking other peoples threads? Well then, come party at the captains! Trainwreck this thread with…….trains? Anything goes here……….

I don't have time to read through all that but you can tell them what I did. My well water comes out at 650ppm around 8.1 pH. I just switched to ProMix HP and haven't touched my pH meter or ec meter ever since. Simple.

www.thcfarmer.com

Mojomomo · Aug 13, 2024

Beachbumm said:
"Water in a bucket reading.
544 ppm"

Wow! I've never heard of a ppm that high, heard you shouldn't use it past 200ppm

My well is 60's to 90's ppm, so I'm not sure how you would use water like that, hope others can chime in cuz that's out of my wheelhouse

Friggin salt ... That was high. The first test was almost that bad, 480.

GNick55 · Aug 13, 2024

transplant into bigger pot or the ground and quit ph’ing etc..

Mojomomo · Aug 13, 2024

It appears to be holding its on,but the water readings are crazy. It needs water this a m.

GNick55 · Aug 13, 2024

GNick55 said:
transplant into bigger pot or the ground and quit ph’ing etc..

oh thought that pot was much smaller
forget what i said

Mojomomo · Aug 13, 2024

GNick55 said:
oh thought that pot was much smaller
forget what i said

Thnx - my ground is about as bad as the water. Lol and I have deer zombies creeping around at night. :/

Yellow leaves water or nutrients?

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