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Back to Grow Questions
Help :)
JoshuaTreez
started grow question 4y ago
Is this potassium deficiency? Or nitrogen toxicity?
Solved
Leaves. Color - Yellow
likes
HighRoller909
answered grow question 4y ago
yeah both. Nitrogen excess can create potassium deficiency, bear in mind. Too much N will block usage of K
1 like
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Selected By The Grower
Organoman
answered grow question 4y ago
I would go for potassium deficiency.
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Similar Grow Questions
Solved
susina
bottom leaves yellow
Helloo So today I've noticed that the bottom leaves are yellow. I don't really think it is a problem since I think the reason is that they don't get enough light because are covered by the bigger leaves on top. But it's better to ask since I'm a newbie. What do you think?
Week 4
Leaves. Color - Yellow
6y ago
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Solved
Purkle
Anyone have any ideas what could be causing the yellowing in the leaves of my Pheno 1? I think iron def - its the top new growth & is working from the inside of the leaves towards tips. Tested feedings of liquid seaweed & water to pH 6.2 but not run off. May be dry am. nute
Week 9
Leaves. Color - Yellow
7y ago
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Aeries
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Help! She is starting to develop yellow spots on her leaves now 😢
Leaves. Color - Yellow
6y ago
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Fruitgrower
Odd Leaf Colouration
Was topped only once, and spread horizontally. Has had since very early on some kind of issue with its leaf Colouration but still grown side by side with her sister in the same soil, feed and conditions.
Week 6
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6y ago
1
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Solved
Angel1981
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6y ago
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Solved
Straightcurve6
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Leaves. Color - Yellow
5y ago
1
1
Solved
Eldritchscotchtober
What could be causing yellow leaves at the bottom of my plants. Deficiency? Are in soil that supposedly has weekly specific nutes baked in. Any help
Most plants in my grow are yellowing at the bottom. One plant in particular is showing what i would call severe stress. I think I figured out that I had an air flow issue causing plants to keel over that was easy to fix. The Bushy one is North shore Maui and the big one is GG.
Leaves. Color - Yellow
5y ago
3
4
Solved
NicoKh
bad leaves
Some leaves in a bad looking don't know why, i think is overfeed or smthn what do you think? them are on the middle of the 5th week of flowering
Week 9
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
2
2
Solved
1stForBuds
PLEASE ADVISE ME OF THE PROBLEM
Hi peeps this is the same question as yesterday...I got a problem with my zkittlez auto.... one day she she was fine then the next day I find her like this.. she has been fed I need advice of the possible cause please . photo taken with and without light
Leaves. Color - Yellow
4y ago
4
5
Solved
cannanub
Yellow stripe on leaf appeared 2 days ago is it an issue?
Is the yellow stripe in my 8/26 picture anything I should be concerned about? Don't want to botch my first real grow
Week 2
Leaves. Color - Yellow
5y ago
2
Solved
Teamdirtbag2
Why are my leaves turning yellow on my Sour Crinkle?
Week 9
Leaves. Color - Yellow
8y ago
20
7
Solved
Qutro
Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?
Leaves. Color - Yellow
4y ago
1
1
Solved
Dawel
Puntas y bordes amarillos/marrones ¿Carencia de Potasio?
Mi planta comenzó a florar aproximadamente hace 2 semanas y note que las puntas de las hojas se ponen amarillas, las hojas mas viejas se han puesto algo palidas y las puntas pasan de amarillo a marrón. También hay manchas marrones en hojas de mediana edad. ¿Carencia de K?
Leaves. Color - Yellow
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3y ago
4
3
Solved
FreshBanger
Yellow Spots On The Leaves
My Northern Lights Auto have just entered 2nd week and there some visible yellow spot on the edge of the leaves. I cant figure out what could be the possible cause for this also is this and also is this the normal size for a 2 week old plant?
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3y ago
1
3
Solved
BadGrower
Deficiency or overload? Any help appreciated
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Leaves. Edges burnt
Leaves. Color - Yellow
4y ago
1
Solved
KhunBabe
What is causing the yellow leaves
Dec 29 - Transplanted to 30cm. Plain soil mix. Did not water Dec 30 - watered with nutrients at 350 ppm about 500ml Jan 2 - starting to see signs of yellow on lower leaves Jan 3 - cotyledons have turned solid yellow, two main leaves yellowing Jan 4 - no change Jan 5 - leaves look
Week 3
Leaves. Curl down
Leaves. Color - Yellow
3y ago
6
5
Solved
greenthumbartisan
Look like Zinc and Calcium deficiency? Watering with 5.8/5.9pH, 2.06 EC (Runoff 5.8pH, 0.78 EC) Few leaves had small nutrient burn on the tips earlier this week. Nutrient burn appears to have tapered off.
Week 6
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
5
Solved
Happygrowing
Foglie gialle
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Leaves. Color - Yellow
5y ago
1
1
Solved
Bucket_Buds
Bottom leaves yellowing in flowering
My lower leaves started turning yellow and drying out, am I having nutrient deficiencies? My guess would be nitrogen or potassium but not sure, had some nutrient burning earlier so cut down on the feeding a bit.
Week 6
Leaves. Color - Yellow
4y ago
5
9
Solved
EddieEd
Is this magnesium deficiency?
After some googling, it seems to match? But the yellowing on mine seems to be very concentrated just on the tips.
Leaves. Color - Yellow
4y ago
3