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Back to Grow Questions
Help :)
JoshuaTreez
started grow question 5y ago
Is this potassium deficiency? Or nitrogen toxicity?
Solved
Leaves. Color - Yellow
likes
HighRoller909
answered grow question 5y ago
yeah both. Nitrogen excess can create potassium deficiency, bear in mind. Too much N will block usage of K
1 like
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Selected By The Grower
Organoman
answered grow question 5y ago
I would go for potassium deficiency.
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Similar Grow Questions
Solved
MrHightimes
Yellow spots appearing... transitioning off amended soil, maybe didn't add enough Floramicro??? maybe more Cal-Mag? Thank you for looking :P
Week 4
Leaves. Color - Yellow
6y ago
7
3
Solved
AndreWeed96
Is normal that the plant (44days passed, 7^ week) makes yellow bottom leaves?. Photo uploaded.
Week 7
Leaves. Curl down
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
4
5
Solved
aphexbg
Yellow fan leaves, brown spots on upper leaves, some curling.
Hi guys, I'm certainly having issues with my Amnesia Haze Auto feminized. At first the fan leaves on the bottom started going yellow, then after the flushing I did brown spots appeared on upper leaves. Please check the latest week of the diary and share opinions. Much Thx! <3
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
Solved
Nurse
leaves have yellowed or burnt heads
Some of the leaves have yellowed or burnt heads, which can be seen in the photos. Some leaves burn even when sprouting.What is the reason and what can I do about it?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Other. General questions
6y ago
1
1
Solved
EmberWeed
What could it be?
I'm a relatively new grower and I don't have a diary setup yet. I know it's hard to diagnose a problem when there is no diary, sorry! They were good until they started to yellow. They are in their 5 to 6 weeks of flowering. Some are good some are yellow and I feed them the same.
Leaves. Edges burnt
Leaves. Color - Yellow
4y ago
5
4
Solved
BoboLacetti
Maybe Mg?
Hey guys! My baby is in the 4th flooring week. One of the platns get Yellow leaves... Maybe more Mg? I have the hole BioBuzz line which produkts can i use to help her? I gave her a higher dose of CalMAg an how much? She has an 20 Liter airpod.
Leaves. Color - Yellow
2y ago
1
1
Solved
tiny_couch
Yellowing lower fan leaves, a few red stems; N/Mg deficiency or normal low leaf die-off?
Is this a Mg or N deficiency or are these leaves naturally dying off? Showing on only one of two plants so far. Appears only on lowest fan leaves. F20, 7L pots BioBizz AllMix and nutes (1mL/L Grow and 2mL/L Bloom). Temp/RH are good. Can't measure pH. Local soft tap water 7-8pH.
Leaves. Edges burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
6y ago
2
1
Solved
kevgrow
Yellow border spot on leave - day 3 seedling stage
First Time Grower - Small Yellow Border on Leave #2 Its day 3 seedling stage Noticed a small yellow border on #2 Im Not sure what strains they are Only feeding water ph 6.1 Using roots organic soil Currently set at 24/hr lighting Any recommendations?
Leaves. Color - Yellow
6y ago
2
2
Solved
WeedDude
What can causes the different color in the colas. Its the same Plant.
In the picture you can see the higher colas are light/yellowish green and the cola lower in the canopy are darker/healthier looking. more infos in my diary (1st grow) Thank you very much
Week 16
Buds. Other
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
2
Solved
Scrumpy
Yellow tips
New grow, new leaf colours! I think it could be over feeding, but would like to see peeps opinions if possible. Have stuck to the feeding schedule, but the fabric pots might be making things more complicated somehow?
Week 5
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
5
4
Solved
psuperman
Calcium Def/Wilting or other issue?
So after 24 hours of feeding it CM Plus it doesnât look any better. Iâm hoping there is not another underlying issue. Environment remains the same. Pics are 24 hours apart. Or will it take a few days + before seeing improvements?
Week 8
Leaves. Curl down
Leaves. Color - Yellow
Plant. Wilting
5y ago
4
11
Solved
Bonne_grow
quel est le problĂšme?
les feuilles du bas deviennent encore plus jaunes et le bout des feuilles brunit, le dessus est vert et la plante ne pousse pas. quel est le problĂšme?
Week 8
Leaves. Color - Yellow
Plant. Too short
6y ago
3
Solved
BrandoBuds
Yellow/ brown leaves #2 (pics didnât post the 1st time)
Hey guys so my plants are starting to turn this yellowish color and Iâm not sure what the problem could be. Sorry for the second pic, itâs kinda blurry but thatâs the actual color compared to the other leaves. Itâs my first grow and Iâm kinda lost on a solution . Many thanks
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Gee43
Yellowing and falling
This is a critical purple auto. It started off fine but during the flowering stage it.has been the pits. I have leaves yellowing on the bottom as well as the top. Even little leaves are yellowing and falling off. What an I doing wrong?
Week 7
Leaves. Color - Yellow
5y ago
2
2
Solved
High_flying_scotsman
Yellowing help
Previously posted about yellowing but getting far worse nowđ, is this a magnesium deficiency, only on fan leaves. Thanks
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
4
4
Solved
Its3AM
Seedling leaves turning yellow coco
1st coco grow seedling turning yellow been giving calmag every other watering . Should I start with the other nutrients the plant needs?
Leaves. Color - Yellow
5y ago
1
Solved
Nautilus
Last question, i should cut it off right now correct? The plant look like is dead in my opinion theres nothing that can save them, how i can avoid any type of mold in the nug? Im really scared about what happened last night to my 2/4 plants... today i turn immediatly the lamp off
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
1
Solved
Cannabisflakes
Little seedling having a hard timr
So guys; I'm worried about this seedling. She's having trouble on keeping up with her sisters. I noticed a yelow color on their tinny tips đ€ Cotiledons got brown pretty quickly too. She took longer to "open" the cotiledons after popping from the soil. Should I do something?? đ
Week 2
Leaves. Curl down
Leaves. Color - Yellow
Plant. Too short
3y ago
3
3
Solved
Jaykut22
I have no idea what is going on. Everything is within spec. Ph, temp, humid, lux was 50k now adjusted to 25k.
Droopy and yellowing leaves. Plant is not underwatered. Starting with a mag deficiency and she bounced back early. Started lst and 2 days later she started dropping and yellowing more. Everything is in check from ph, temp, humidity. I just dosed with more cal mag.
Leaves. Color - Yellow
3y ago
1
2
Solved
Hix57
Jaunissement, excĂšs ou carence ?
Ma Amnesia prĂ©sente une dĂ©coloration rapide des feuilles en jaunes. Je pensais qu'elle avait un excĂšs car les pointes brĂ»lait J'ai effectuĂ© un rinçage et mis une alimentation douce pour repartir mais le problĂšme s'est aggravĂ© et a accĂ©lĂ©rer le jaunissement. Merci d'avance ! đ±
Week 10
Leaves. Color - Yellow
2y ago
3
5