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Back to Grow Questions
what Is that?
MedUs_0o
started grow question 6y ago
deficiencies or excesses of potassium or other?
Solved
Week 10
Leaves. Color · Yellow
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MadeInGermany
answered grow question 6y ago
Hi your ph on earth fits I would even go down to 6.0 - 6.2 :-) but how high is your ec? otherwise nobody will be able to help you, and we also need their watering behavior :-)
1 like
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Selected By The Grower
NobodysBuds
answered grow question 6y ago
if following your nutes instructions, i bet it's a toxicity. seems to be a trend.
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Similar Grow Questions
Solved
KuchiMan
Plant leaves yellow
Hello, why my plants leaves starting yellowing? 1week of flowering. Plase help! :(
Leaves. Color · Yellow
Plant. Other
4y ago
1
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Solved
Marley03
Rust spots
What could be the cause of these rust spots? Only 1 plant is showing this. Same strain. They get same feeding. Ph is ok. 4 weeks into flowering.
Leaves. Color · Yellow
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4y ago
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Imagine
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Hi, My weed have some troubles, i can see some leaves becoming yellow with some "yellow points" .. At the end of the leaves, it is, i guess, some necrosis and it's curling down. Could you help me please ? I think it's a calcium deficiency but not sure.
Leaves. Curl down
Leaves. Color · Yellow
5y ago
2
3
Solved
Uncle_bill
Does this look like nutrient burn, or a deficiency? The PH is right at 6 and I did my nutrients for 3 gallons in like 4 gallons of water.
Week 2
Leaves. Curl down
Leaves. Color · Yellow
10mo ago
5
4
Solved
dave1038
Yellowing, browning leaves
Here is my Northern Lights Auto which is on Day 75 from sprout These 2 photos are taken 3 days apart to show the progression of whatever is happening. 4ml Biobizz Grow 4ml of Biobizz Bloom 2ml of Calmag Per litre, use 2L of water every watering
Leaves. Color · Yellow
4y ago
1
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Solved
ukterpdoc
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Leaves. Color · Yellow
6y ago
2
1
Solved
nancypotwin
skinny yellowing leaves
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Leaves. Color · Yellow
6y ago
1
2
Solved
Bizio
Pruning dilemma
I am noticing that some leaves are turning yellow at the very bottom of some plants, I think that there is not enough light coming through. So my question is (I did only LST and FIM --> on the main branch on every plant) should I start to prune some branches to empower top part?
Week 6
Leaves. Color · Yellow
Techniques. Defoliation
6y ago
4
4
Solved
CARLOSPLANCTON
Mid Flower, Yellow, burnt leaves
What could be happening to this plant? Could it be root rot or overwatering ? its in middle flower, with good ph and organic nutrients from top crop, 26°C and 200W led cob. This are the older leafs, but the rest of the plant seems fine. this week I increased the PK levels.
Week 8
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
5
Solved
hollyhustler
Is that just a light burn or could it be something else?
One bud in the middle of my plant is much lighter than all the others, which all look healthy and green. I think it was due to the too small distance of my light, which was only 20cm (8") between canopy and light. I have now moved the light to 35cm (14"). What are your opinions?
Week 8
Leaves. Color · Yellow
Setup. Lighting
5y ago
4
3
Solved
halexxo
Déficit y hojas muertas
A few days ago, these spots started appearing on several leaves and even some dried up completely. I'm following the Biobizz growing chart for a light mix, does anyone know what it could be? Thanks
Week 6
Leaves. Tips · Burnt
Leaves. Dropping off
Leaves. Color · Yellow
4y ago
2
7
Solved
gsimd
My two Grandaddy Purple Autos are light green/yellow in color. Is a lack of nitrogen the cause or is it something else? What do you recommend to fix the issue?
Week 5
Leaves. Color · Yellow
5y ago
1
2
Solved
BrianMcGee
Yellowing of lower leaves and crispy
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Leaves. Color · Yellow
3y ago
2
7
Solved
jonnyblaze
Yellow leaf
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Leaves. Color · Yellow
2y ago
4
5
Solved
Sitej
Good afternoon My first grow on coconut substrate. The edges of the leaves have turned yellow. I give Kalmag at each watering 0.5 ml/l, maybe it’s not enough? Fertilizers Grow 0.9 ml/l Micro 0.6 ml/l Bloom 0.3 ml/l. Ph - 6.0 - 6.2. I noticed problems on the 17th day.
Week 2
Leaves. Color · Yellow
3y ago
4
3
Solved
Xi_Ve
Deficiencies?
Is this a sign of Ca/Mg deficiency? Or maybe even Potassium? Gorilla Glue Auto
Week 8
Leaves. Color · Yellow
5y ago
5
4
Solved
Dawel
Puntas y bordes amarillos/marrones ¿Carencia de Potasio?
My plant started flowering about 2 weeks ago and I noticed that the tips of the leaves are turning yellow, the older leaves have become somewhat pale, and the tips are going from yellow to brown. There are also brown spots on the medium-aged leaves. K deficiency?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
4
3
Solved
BearBeard
Could this be light burn?
Could this be light burn? Only on top new leafs. Have not fed her any nutes yet. I did lower the light after I did LST by the height difference after bending her lower. Have raised the light back up again but just wanted to check what people thought. Thanks in advance
Week 4
Leaves. Color · Yellow
6y ago
3
3
Solved
Eagers
Help diagnosing deficiency
Can someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho Thanks
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
1
Solved
guerilla
Calcium deficiency or fungus??
Iv just gone into 12/12 and what i thought would be fixed with simple calmag. Has got worse! Leaves are very yellow with brown spots.. Seems to be just brown spots on 1 girl.. :-(
Leaves. Color · Yellow
Leaves. Other
Feeding. Deficiencies
6y ago
5
6