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Back to Grow Questions
Phosphorus deficiency?
GemansGoGreen
started grow question 2y ago
Phosphorus deficiency?
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Leaves. Curl down
Leaves. Color - Dark-brown
Leaves. Color - Mottling
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Answer
Krisis
answered grow question 2y ago
Looks more like potassium deficiency to me
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Similar Grow Questions
Solved
forgettenseedling
Leaves getting brown, can someone help me out? What does the plant need?
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4y ago
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Calmag excess or defiency??
So.. I have 4 flowering plants. I feed them the same stuff. Same quantity. 2 out of 4 showed some signs on the older eaves and i was wondering if its an excess or a defiency. Yellow with brown spots. Not a wind damage for sure.
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5y ago
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crusoe
Yellow leaf tips and edges
Hi I've got a problem that I've seen from the start of my grow and it's getting worse on older leaves now - zoom in edges and tips are turning yellow. I thought it was magnesium so I've dosed with Calmag but it's not improved - I'm Ph6.5 - any ideas?
Week 4
Leaves. Color - Yellow
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5y ago
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CheckThoseTrichs
Lower leaves drying up upper growth yellowing
Lower leaves starting to dry and upper growth yellowing. DWC, pH 5.9 and 600ppm. M-G-B series nutes.
Week 3
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
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TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?
Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn. The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
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Week 1 new clones' top leaves are not solid green. See some minor claw.
Already after about 4 days out of the moisture dome, the new top leaves' color doesn't look solid green throughout, and doesn't seem to spread out nicely. I've added some nutrients from Fox Farms with some molasses and mycorrhiza, but no improvement. Anything to worry? 😕
Week 1
Leaves. Curl down
4y ago
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FirstTimeGrower
Hi everyone, I’d like to solve the issue of the discoloration on my baby girl; I have given her new soul thinking I put too much worm casting’s in the mixture.
Week 1
Leaves. Color - Dark-brown
8y ago
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potfromgreece
Spots on leaves
EMERGENCY! Strange spots on the leaves and white plaque on the other side. What should i do??
Week 3
Leaves. Color - Dark-brown
Leaves. Other
6y ago
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Curled down leaves
Should I be concerned about these curled down leaves? there are only a few per plant and they look good otherwise. I wanted to flip them to flower but wondering if I need to readjust my nutes and give them more time? Last 5 pics are of the curled leaves.
Week 4
Leaves. Curl down
6y ago
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iMeus
Hello GD my Mazar is having weird patches of shiny stuff that look like snail trails (no snails) it doesn't rub off and I'm not finding the issue online. I'd appreciate any insight into this issue (:
Week 15
Leaves. Color - Mottling
8y ago
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HappySkunk
Clawing leaves
Noticed today that I have a couple of clawing leaves like this one. Any clue what could be wrong?
Week 5
Leaves. Curl down
6y ago
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GoldenWeedGrower
leafs with brown spots and olders become yellow and curled
I'm trying to figure out what is the problem with the growing of my plant. The upper leafs are quite normal, even if they tend to bend downwards. The old leafs start with brown spots and then they become yellow and curled on the peaks. Please help me to understand what's going on
Week 3
Leaves. Color - Dark-brown
Plant. Wilting
5y ago
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Slightly curling in the middle of the leaves
What could be causing my leaves to bend this way? They curl down and up
Leaves. Curl down
5y ago
1
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Plant starting to wilt after HST
After supercropping three days ago leaves started to claw, some are partially or fully floppy, there's some brown areas forming along veins and some are getting pale. Is this normal? Could it be something else like overwatering?
Week 6
Leaves. Curl down
Leaves. Wilting
Leaves. Color - Pale
6y ago
6
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CRIM_mir
Day 46 NL Auto: Multiple Leaf Problems Developing after Possible Nute Lock and 2x Flushing — Should I feed again @ lower TDS? What’s wrong?
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6y ago
5
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Solved
joelhubbert
Rusty-brown markings coming out on lower leaves.
Question re-do with better pics. Rusty-brown colour leaves, starting on older growth. Theres a few white hairs starting to brown, lower on the plant. No hermi sacs found pH was too low for 2 H2O’s last week. Re-cal’d tester and got strips to compare. Runoff back to 6.3 from 5.4
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BLAZED
Yellowing leaves, brown spots, tips pointing down and are brittle and burnt,
I got some leave problems. signs: - Leaves turning lightgreen/yellow. - Tips of the leaves are pointing/curling down and are brown and brittle. - Some leaves have a reddish colour, especially the leaves on the buds. - Some leaves got brown spots on them. Whats could be the cause
Week 12
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Leaves. Curl down
Leaves. Color - Yellow
3y ago
1
4
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PurpleFingers
Too much nitrogen/water?
I am having some trouble with a Sundae Driver phenotype. I have had this problem before and couldn't figure it out and thought I had corrected it with this grow by significantly reducing nutrients - currently on 3ml Canna A+B 1/3ml/l pk and 2 ml boost. Drinking 3-4l every 48hr
Week 6
Leaves. Curl down
6y ago
3
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Solved
GreenFingeredLT
Can someone confirm this droop is the circadian rhythm?
images in the diary show how she looked this morning Today I gave a good water with a weak dilution of H2O2 to balance PH + add oxygen , I also brought the lights a bit closer Am I correct in thinking shes had a hard day building food for tonight growth?
Week 3
Leaves. Curl down
6y ago
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Chilipadi
Persistent markings spreading on leaves
The problem came back to this seedling with brown markings on leaves which has spread to 2nd set and slowly spreading the whole leaves. Ph runoff is stable 6.1 so is ppm. Idk whatelse to do to help. Been putting cinnamon on top coco too. Ppm in is 340ppm. Any advise please.
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5y ago
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