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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.
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Selected By The Grower
Similar Grow Questions
Solved
Newbiegrower420
Help! Yellow fan leaves mostly at the base!
Help! My girls have shown some signs of cal mag deficiency and I’ve added it at 1ml/l per plant for about a week now.. But it’s not improving or is there something else? Tight for space and wondering if this is also due to not receiving enough light? New growth looks ok?
Leaves. Color - Yellow
5y ago
2
2
Solved
torgul2000
New leaves turning yellow under led
My autos are turning into flowering. It seem I’m under led, respecting the grow schedule and new leaves are turning light green… is it normal or a deficiency/excess (iron?) ? Thank you for the answers
Leaves. Color - Yellow
3y ago
2
2
Solved
DrastikOG
Is this a humidity issue?
Is there something wrong with my Blackberry kush Auto?I have been feeding her PH water and i am growing on soil
Week 1
Leaves. Color - Yellow
5y ago
3
3
Solved
caitbella16
Pluto Auto from Ethos leafs yellowing from bottom up? Help??
With yellowing climbing up from bottom to top mixed with brown spots and new smaller growth looks stunned about 5 days after giving a lil nutrients what would your opinion be on what’s going on here? Any advice helps, and thank you in advance. Pluto Auto week 6 day 2
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Other
4y ago
1
1
Solved
Paranado
Nutricients biobizz question
Hi! I use biobizz in full mix soil. Been having issues on veg. I used to use growmix. I realised I need veg : fish mix 2ml every feed Flower :topmax/growmix/bloommix 2ml, last weeks 3ml. Is that fine please because I've been stragling and many deficiencies. Thank you!
Leaves. Color - Yellow
1y ago
3
3
Solved
Half_Synthetic_Growing
Droopy leaves, weird spots.
Does anyone know what's wrong with that bottom left plant? Those spots appeared pretty soon after I cleaned those filters. I'm thinking that it's a stress caused by that cleanse, no chemicals or such were used, but some roots were torn in the process. Deficiency? Disease?
Week 9
Leaves. Curl down
Leaves. Color - Yellow
Plant. Wilting
3y ago
4
4
Solved
Grazynka
Fabric pot changes PH?!
Water solution ph5+1000ppm, run off7, 🤦♀️😳PPM @2400, flushed ph6 runoff6, ppm 998, next watering ph5,5+1000ppm but runoff8😳🤦♀️ppm1489. Tested soil Ph5 then tested pot(don't ask) PH14🤯 how 2handle the PH? She is getting yellow ☹️stupid fabric pot😤 potassium defi? To low PH?
Week 10
Leaves. Color - Yellow
Plant. Other
3y ago
2
3
Solved
DEATR
Week 2: One of the plants still doesn't look good + other beginner questions :)
Second week and one of the plants has weird spots + leaves curled. Not sure what to do. Do I overwater? Is it some kind of disease or deficiency? No idea. Also, when should I start feeding the plants? And how much water do I need at this point? 😥
Week 2
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Mottling
2y ago
6
6
Solved
TarheelBandB
Leaf Diagnosis
Could someone help diagnose this leaf problem. It's less than 2 days old. Aañnnnnd, 2 days ago I accidentally set the ppm to 1700? I've since dumped the solution and got it back down to around 700 ppm. I'm hoping someone give me some triage pointers. Should I trim those leaves?
Week 4
Leaves. Color - Yellow
5y ago
4
3
Solved
Maskedcucumber
3rd week since 12/12 and chlorosis is getting worse !!! Will my crop be crappy ?
Brought EC to 1.6, added 21ml of calmag, had to add 2L of osmosis water because the EC was 1.78. I changed the bad Ph probe and I let it fluctuate between 5.75 and 6. Should I remove the aluminium foil on the pot to let them breathe ? Not sure they are overwatered, I'm desperate
Week 8
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
3
4
Solved
WeedVV
leaves wither
Hey, guys. I want to know what's wrong with this leaf. Is it a serious problem?
Leaves. Color - Yellow
5y ago
2
3
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
Filiaes
Nitrogen deficit?
The bigger plant is struggeling a bit again. After some talks and readings it could be a nitrogen deficit but am not really sure how if I should react to it, since the need of the plant should get less for nitrogen in the next weeks. Please read my journal for more information.
Week 7
Leaves. Color - Yellow
2y ago
6
7
Solved
madmatt33
New plant yellowing
Wondering what would be causing my 2 week old plant to turn yellow? The yellowing started in the middle of the leaves close to the stem on its first set of leafs
Leaves. Color - Yellow
5y ago
2
2
Solved
Frnikola
What to do? → BF Runtz Auto - Day 42 - RH70, 80F in BioBizz Light Soil
On my last post, I was advised I have N tox, so I watered w/o BioGrow, just BioBloom and it's gotten much worse. The runoff EC was 1.5 (watered with 0.8, runoff pH was okay), so I’m guessing it's salt buildup. I plan to flush when this watering dries out—any thoughts?
Buds. Not fattening
Leaves. Color - Yellow
Leaves. Color - Black or grey
1y ago
1
Solved
tiasmaaa
Bud leaves turning yellow ? End ? Burned ?
Upper leaves (on the buds) turning yellow, is it because we approach the end, or burned ? the other leaves under are looking really nice, not burned or anything else so I don't know...
Leaves. Color - Yellow
3y ago
1
2
Solved
Wrath55
Discoloration entering late bloom period! Help I'm a newbie!
I am entering late bloom and my girls are experiencing color discoloration. Burn tips = nute burn from last week. Now I'm getting tiny yellow dots on some, half yellow leaves on some and on two or three a rust color spot. Help! What can I do to fix this?
Week 14
Leaves. Color - Yellow
5y ago
3
3
Solved
Latestagecapitalist420
Yellowing of leaves Week 9
Help! Is it normal to have such yellowing Week 9? The buds are still green, but the bigger older leaves are quite yellow. Same strain different plant still very very green. Might be the difference between topping an auto and not topping an auto?
Week 9
Leaves. Color - Yellow
5y ago
1
2
Solved
420Highlifecouple
Is my plant heat stressed
Help my tent was 33 degrees has the plant been hit by heat stroke?not sure why leaves are rapidly turning yellow.
Leaves. Color - Yellow
4y ago
1
2
Solved
Kratistos
Upper leaves are yellow and not smooth
I noticed leaves on top are closing and today are yellowish. Older plant aren’t stretching more, I thought it’s too much light or too hot but it’s kinda weird because light are at 40cm from longer plant and 50 from smaller, temperature are max 26C. So, it’s normal?
Week 3
Leaves. Veins - yellow between
Leaves. Color - Yellow
2y ago
3