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Back to Grow Questions
Yellow Leaves
420cropper
started grow question 5y ago
Can anyone give me an answer as to why this one plants starting to get a yellow colour coming threw in the middle of the leaves? I don’t think it’s due to heat as the other plants are growing a nice green
Solved
Leaves. Color - Yellow
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DoctorGreenThumb
answered grow question 5y ago
Hard to tell by the pic but it looks like magnesium deficiency to me.
1 like
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Selected By The Grower
Similar Grow Questions
Solved
BigBaby420
Yellow spots
I noticed some yellowing on some of my leaves. I did some research and think it may have been lead septoria. Not sure. Posting pictures... during defoliation I got rid of them anyway
Week 6
Leaves. Color - Yellow
5y ago
2
1
Solved
Chr0nus
Yellow spots on leaves
Noticed yellow spots on one of my leaves. It’s just on one plan (just one bottom leaf). Don’t know if this is cause of water being on the leaf or something else. Might just cut the leaf but I wanna know what it is 😅😅
Leaves. Color - Yellow
3y ago
1
2
Solved
Stonerapaisana
Folhas a amarelar! Duvida?
Olá a todos, estou a ter um pequeno problema nesta run, gostava de pedir a vossa opinião, estou na 3 semana de flora e algumas folhas começaram a amarelar, como se fosse falta de nitrogênio, mas na verdade eu acredito que o solo esteja bem fertilizado, posso dar mais detalhes...
Leaves. Color - Yellow
6mo ago
3
3
Solved
Bigbuds420
Curly leaves, help!
Upwards curling of the leaves, any ideas? Also not sure if theyre all abit leggy or if they are on track
Week 2
Leaves. Curl up
Leaves. Color - Yellow
Plant. Too tall
6y ago
1
Solved
DrBinoc
Magnesium or Nutrient Burn or?
Magnesium deficiency, or nutrient burn or??? Only on the lower leaves so far, curling down was existing genetics - but the burnt tips are new and some have even curled up now. Probably 5+ weeks left so too early for natural dying off?
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
5
4
Solved
LookAtMyHORSE
Старые листья покрылись точками и желтееют
Некоторые взрослые листья покрылись точками и желтееют (смотри фото). В чем может быть причина и стоит ли их отстригать?
Week 7
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
2
Solved
SeedlockHolmes
Calcium or magnesium deficiency?
Cal mag def? Photo of new growth affected:
Week 5
Leaves. Color - Yellow
4y ago
3
3
Solved
DaddyPrime
Yellowing lower leaves
Yellowing lower leaves. Is she just hungry for npk? Or is it a different issue? Any opinions would be helpful
Week 9
Leaves. Color - Yellow
5y ago
5
6
Solved
JoshuaTreez
What do you guys think is the culprit with this plant? Crazy heat wave, been 30-32 in the tent 24/7 just cranked the exhaust fan
Week 7
Leaves. Color - Yellow
5y ago
3
2
Solved
greenhousegrowgirl
Possible Nitrogen Deficiency?
Is this a nitrogen deficiency? I had a yellowing leaf or two at the bottom of the plant which have since dropped off, but rest of the plant is looking patchy now. I have just switched from fish mix to bio grow.
Week 8
Leaves. Color - Yellow
4y ago
1
3
Solved
Septooth
Leaves turning a yellowish color
My plants are turning a yellow color. The two in front were shorter than the one in back, so I raised the two in front 4" so they all received the same amount of light. Any ideas?
Week 7
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
6y ago
2
4
Solved
420cfm
Am I overwatering or underwatering Too much nutrients or not enough? Should transplant to a 5g?
Week 8
Leaves. Color - Yellow
8y ago
7
4
Solved
laberg
Yellow discoloration again
I'm annoyed by having to post another question but oh well. Yesterday evening I increased the PAR from 370 to 400 in center. This morning the top fan leaves were pointing straight up and so I raised the lights a little. I later looked and saw discoloration. Light burn?
Week 5
Leaves. Veins - stay green
Leaves. Color - Yellow
3y ago
1
2
Solved
EvilAbedii
Leavs turn yellow and fall off
leaves of my plants are loosing color slowley, turn yellow, sometimes develop brown stains and eventually fall off. It started in middle of the plant on lower leavs and then spread.
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
2
Solved
PanGrower
Yellow leaves during flowering
I find such yellowed leaves in the lower part of my plant during flowering, I cut them off. Tell me, is this normal?
Week 10
Leaves. Color - Yellow
2y ago
4
Solved
magnumalessio
Yellow Leaves
Ok guys, today is the 5th day without irrigate cause the soil was too wet.. now my leaves turn out like this. What do i need to do? Do i need to give them something? Every week i give them neem oil for invader so i think is not that problem.
Leaves. Color - Yellow
3y ago
3
6
Solved
Rumham
Small red spots on top canopy leaves week 4 of flower
Deficiency of some kind. Leaning more towards a calmag shortage or even a phosphorus deficiency? Any thoughts? Small red spots with minor yellowing of leaves in week 4 of flower.
Leaves. Color - Yellow
5y ago
2
Solved
Manko
I only discovered this page very late and I'll just start documenting it here .. I planted the plant around mid-February
Week 7
Buds. Not fattening
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
2
Solved
Organic_LarF
Yellow leaves
Hello, take a look at the pictures please. Leaves are turning yellow and curl. Is this a N burn, or a deficianty from some mineral? Or is this nutrient lockout? Plant does grow well!
Week 10
Leaves. Curl up
Leaves. Color - Yellow
6y ago
3
3
Solved
Anorak
Tips burning, brown spots
Hello growers! I have White Widow in the 5th week of flowering. Only top leaves are affected, some of them are turning pale yellow. Feeding her with NPK:18-12-18 and Cal-Mag. The brown spots are my biggest concern. THANK YOU!!
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
1
3