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Back to Grow Questions
Oldest leaves turning yellow
Waveform
started grow question 2y ago
What could be the cause of oldest leaves turning spotty yellow on 3 week old plants? They got nutritients end of last week for the first time, but not that much.
Solved
Leaves. Color - Yellow
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Krisis
answered grow question 2y ago
Looks like there’s yellowing in between the veins of the leaf to me. That or the lights making it look that way. Anyhow that’d be magnesium deficien
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Selected By The Grower
jeeje
answered grow question 2y ago
I cant see the whole plant, but from the picture it looks like nitrogen deficiency.
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Similar Grow Questions
Solved
MicroNighthawk
Not enough nutrients for Nirvana Maui Waui in light soil?
I have overfed my last grow by spraying it with Alg-A-Mic... so this time around I kept giving her only a minimum of nutrients. Looking at the yellow leaves and the brown spots... most of the leaves touched the tent... am I UNDERfeeding her now?
Week 11
Leaves. Color - Yellow
4y ago
2
3
Solved
Harold_Halibut
Feedback/checkpoint/thoughts
Hi every1👽😌Started week 7 of flowering today. How do they look to you? Is there anything I should pay special attention to? I think I may have overfed or overwatered them last time - I’m not sure which one - which could explain the leaf damage. What do you guys think overall?
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
6mo ago
7
7
Solved
Quintus
Textbook deficiency/over feed, any advice on wich one ?
Hello guys ! I think i'm encountering a text book deficiency/over feed but can't figure out which one. This is a Frostbanger auto from 24buds in Plagron royal mix at week 4, under 150 led watt. Been giving her only some power roots & power zym with evaporated tap water :(
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
1y ago
4
Solved
Italy_grow
yellow leaves
my girls are getting worse every day. the problem started with the lower leaves now the problem is climbing to the top. the plants are at 7 weeks are fed twice a week with canna flores and bost Ec 1 and ph 6.5
Leaves. Color - Yellow
5y ago
4
Solved
ElectricWizzer
New growth and top leaves have some discoloration. Could it be light related, or maybe a zinc deficiency?
She has been flowering for about a week now and showing some pale spots. At the start of flower I turned the light up from 200w to 300w. Light is currently at about 20" from the canopy. Plants seem healthy otherwise, should I be concerned?
Week 4
Leaves. Color - Yellow
6y ago
2
9
Solved
kevzzz
Is this sight yellowing normal or cause for light concern? No nutrients
Does it look like the new leaves on my 7 day pictures are slightly yellow? Or is that relatively normal with new growth? 20% perlite, 30% coco, 50% organic potting mix. Been really light handed on the water. waiting until soil is completely dry before watering more (1-2 days)
Week 1
Leaves. Color - Yellow
6y ago
2
1
Solved
Fruitgrower
Yellowing dry leaves, late flower.
About 2 weeks from harvest time, the yellowing leaves which I put down to an early fade have become dry, brittle, curly and splotchy. Should I worry this late? Is it potassium defeciency, lockout? Should I begin flush? Add molasses?
Week 11
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Yellow
6y ago
4
1
Solved
Mattyboyy
Leaves curling upwards and brown spots 10 week autoflower
My plant is worsening and I’m not sure what’s happening. I first thought it was heat stress but it has been a week and is still going down hill. Leaves curled upwards Brown spots on leaves Turning to crisp
Week 11
Leaves. Curl up
Leaves. Color - Yellow
5y ago
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Solved
indianqueens
Yellowing leaves on autoflower dwarf
I'm 12 weeks of vegetative growth deep with an auto-flowering dwarf strain. My plant is nearly 1.5m tall, showing no sign of flowering but I'm starting to get a number of yellow leaves lower down the plant. What is causing this? Should I leave or remove them?
Week 11
Leaves. Color - Yellow
6y ago
1
Solved
Green_Coffee
Name the deficiency.
Problem is mainly occurring on leaves near the top, but not the newest growth. Initially are less green, then start to yellow followed with brown spots. The oldest leaves near the bottom are seeing some effects, but as acute as the mid-upper leaves. Curl likely due to warm temp
Week 4
Leaves. Color - Yellow
6y ago
1
Solved
Boncoward
Brown spots and yellowing
What do you think this is? Nutrients deficiency or maybe soil ph. Happened overnight and the plants are a little dry but I just gave them water and nutrients. My ph tester has been broken so I’ve sorta been winging it with some ph strips.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
2
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Solved
Smokiebear_og
Deficiency week 2 not sure why
Any suggestions on the yellowing on my lady's leaves? I haven't fed anything just watering for now last pH 6.3, Ill check my runoff tonight. Using new soil, Stonington blend.
Week 3
Leaves. Color - Yellow
4y ago
4
2
Solved
Cinderman
Should i harvest twice (half top first then bottom) or only once time?
Week 17
Leaves. Color - Yellow
8y ago
30
2
Solved
grimlyman
Seedlings going yellow
Could yellowing of leaves on seedlings be from too much fertilizer ( liquid fish, compost,seaweed type.) I wouldn't suspect iron deficiency as it is new premium potting mix that they are planted in. I did feed with about half strength liquid feet about 5 days ago.
Week 15
Leaves. Color - Yellow
6y ago
2
Solved
WeedyGonzales
What is wrong with my autos?
Hey, I just start my first grow of 2 autoflowers and 1 feminized plant. The feminized plant looks healthy but I think the autos will be soon dead. Can u tell me what I did wrong or how I can Safe them? They are in week 4 now and in week 3 they already start to bloom
Leaves. Color - Yellow
6y ago
4
Solved
gogocrack
What's wrong with my seedling?
I don't understand why there is something strange in the leaves of this seedling. It happened to me for the first time, even though I was always raised in the same technique. As a fertilizer I just added 0.5 ml to 1 liter of biobizz grow.
Leaves. Color - Yellow
4y ago
3
3
Solved
Jelly
Yellowing from the veins
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Week 8
Leaves. Color - Yellow
2y ago
5
4
Solved
BisEsKlappt420
What’s the problem ?
Rqs Nl Auto week4 flowering BioBizz all mix biobizz nutrients What’s the problem ?
Leaves. Color - Yellow
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3y ago
2
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Solved
Costosito
Hojas se amarillean o queman bordes
I've noticed for a few days that the leaves of the plant are turning yellow or looking like in the photo. I'm not sure if it could be some kind of deficiency or lack of nutrients since I haven't fed it more since the last time, and it's taken on a lighter color.
Week 14
Leaves. Tips - Die
Leaves. Color - Yellow
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5y ago
2
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Solved
RaORa
Do not like the yellow color of the upper tips. Its normal ?
Week 4
Leaves. Color - Yellow
7y ago
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1