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Back to Grow Questions
Yellowing leaves
Bluntblazer66
started grow question 5y ago
Yellowing leaves on young plants Not sure why the plants are yellowing at the bottom I added some calmag thinking it maybe a nutrient deficiency
Solved
Week 3
Leaves. Color - Yellow
likes
Thumbnail83
answered grow question 5y ago
Nitrogen starts yellowing at the bottom, if you have abnormal growth or yellowing on new growth it would be calmag.
1 like
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Selected By The Grower
JoseTodoLoco
answered grow question 5y ago
I can't see it clear on the photo. Make sure the PH pen is calibrated, also take a look at the new growth after you added the Calmag
1 like
Complain
Mr_Cannab1sir
answered grow question 5y ago
Most likely nitrogen deficiency. I know nothing about hydro though, feed needs increasing if it's draining the leaves. It's basically eating itself to survive
2 likes
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Similar Grow Questions
Solved
Mining_green
Hi was wondering if anyone thought maybe defiency or burns secoundary leaves were yellow but starting to come back green. Lowest leaves have a rust streak on its center. Started in its smaller pot hoping it rights itself in bigger pot.
Week 3
Leaves. Color - Yellow
4y ago
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AlanTitchmarsh
Spots on 2 leaves. Anything to worry about?
Anything I should be worried about here? May have let the soil go a little to dry before watering this morning. Overall she seems quite lush, just noticed a few spots on 2 leaves
Week 3
Leaves. Color - Yellow
6y ago
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Verbalist
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Over watering, nutrient defiency or? Backup info: I basicly nute burnt my plants 2 weeks ago, then I changed my growing medium (market soil) to another one with lower Nitrogen & Pottasium values and flushed to whole soil (15l soil) with around 20l pH balanced water. whats up now?
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
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Solved
Babaji
Leaves don’t look quite right.
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Week 6
Leaves. Color - Yellow
3y ago
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Solved
KitaKush
Nutrient Burn or Deficiency?
I recently fed her nutes and two days later I am seeing this yellowing on the baby sugar leaves on top buds only. Do I flush? Or is this a nutrient deficiency and not a nutrient burn?
Leaves. Color - Yellow
3y ago
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Newbiegrowshow
Yellowing leaves
Hi @everyone hope someone can help me with this, my Bruce Banner feminized is 3week old and has got yellowing leaves, any help would be much appreciated ❤️🙏
Week 3
Leaves. Color - Yellow
3y ago
8
6
Solved
OrganicRepresent
Yellowing leaves
Not sure if is issue yellowing leaves on my pot 3. Same strain pot 1 got slowly bottom leaves yellowing, pot 2 have nothing yellowing yet just pot 3 accelerate with it. Pot 3 veg with indica flower as sativa crazy genetics. What can be issue? Its end of week6 flower.
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
Solved
aDriftwoodKing
Seedling yellow tips
One of 4 seedlings has developed yellow tips. Leafs have been curled down since it sprouted. It's about a week old, FFOC soil w/Perlite, Mykos, 3 gal fabric pot. Have been watering until soil is damp using finger test, about a cup or 2 a day. Added 2 ml of silica boost yesterday
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
1
Solved
aBUDabove
Leaf Diagnosis Needed
I need help. Leaves are turning yellow at top of plant only. And only on American Pie. Not Northern Lights. I am using a Sonlipo SPC2500. Bloom mode. Is it possible to have lower ppfd levels and still get light burn? Thanks in advance.
Week 9
Leaves. Color - Yellow
3y ago
6
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Solved
BongRip
1st Week Problem
My plants are in day 7 and I noticed some problems with it. A new set of leaves is coming out yellow in one of my plants and also I am seeing some spots on 2 other plants. They are under 200cfl with the distance of 6 inches. Temperature goes up to 85'F sometimes. Help out pls!
Leaves. Color - Yellow
6y ago
4
4
Solved
DabNinja710
new growth turning yellow.
I've noticed on both my gurls more on the G.G. Auto than the Zkittlez Auto. Bothe the new groth and flower areas are getting yellow But the old growth leafs are fine except there starting to curl down. Anyone could help? I tried to take pictures but it wouldn't really show up.
Week 4
Leaves. Curl down
Leaves. Color - Yellow
6y ago
1
Solved
High_flying_scotsman
Yellowing help
Previously posted about yellowing but getting far worse now😔, is this a magnesium deficiency, only on fan leaves. Thanks
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
4
4
Solved
Batidak
Yellow tips on top leaves only
First i thought it was lightburn, but i raised my lights 2 times in the last week and no change. Does anyone know what my plant is trying to tell me? I use a growmix and just started to feed her for flower so maybe a shortage of some nutrient or still to much N in the soil?
Leaves. Color - Yellow
8mo ago
2
2
Solved
Lloyd_Jones
Nute Burn? Or something else?
I'm seeing a lot of yellowing and dead/curling leaves on my girls. I thought it was nute burn so my last 3 waterings were nute-free, CalMag Only and pH'd. It seems to be getting worse. Could this be something else? Any advice is greatly appreciated
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
Solved
TsukinoKi
Let it grow or cut it out?
One of the seedlings isn't doing so hot. Should I just start a new seedling in it's place or give it more time? I've had a stunted seedling like this before in a previous grow and it ended up yielding a lot...
Week 2
Leaves. Curl up
Leaves. Wilting
Leaves. Color - Yellow
4y ago
1
1
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
Solved
LottaBuds
Leaves fading and dying, started from bottom but spreading
I’m starting to be at a loss with this. Calmag issues earlier in veg, seemed to improve for a while but now bottom leaves started to die - I thought this was just due to beginning of flower but it’s getting worse and spreading even to healthier new growth. PH (should be) fine.
Week 6
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
1
4
Solved
CookiesAndCake
Is this nitrogen deficiency or something else?
Hello everyone! One of my plants has some fan leaves and new leaves yellowing at the bottom (and some are crispy). The plant is very bushy but from what I understand this could be nitrogen deficiency but wanted to check. The other plant is smaller and doesn't have yellow leaves
Week 5
Leaves. Color - Yellow
6y ago
1
1
Solved
Dillsnills
If I do a mini flush to help w pH issues in my soil can I give a nute feeding right after or wait until next watering?
If I give a flush to help with pH issues can I do a nute feeding right after I flush or should I wait for the soil to dry out and do it next watering? The pH in the soil needs to be fixed asap any advice opinions is greatly appreciated.
Leaves. Color - Yellow
Plant. Other
Feeding. Deficiences
5y ago
3
4
Solved
Leonard_Lunte
Leaves turning yellow from the bottom up
My older plants leaves are turning yellow from the bottom up. Its probably a nitrogen deficiency I think, I read that its common for plants in late flower but this one just shot its first pistils. What would be the smartest thing to do to combat this? Thx Its only on 4 leaves rn
Week 4
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
4
3