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Back to Grow Questions
Can you identify the issue?
Grishka
started grow question 5y ago
Leaves turning yellow and brown and curling at the tips
Solved
Leaves. Color - Yellow
Leaves. Color - Dark-brown
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Mikewithgreenthumbs420
answered grow question 5y ago
Go here this is the go to spot if anything wrong with plants hope this helps https://www.growweedeasy.com/marijuana-symptoms-pictures
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Selected By The Grower
Grishka
answered grow question 5y ago
Thanks
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Similar Grow Questions
Solved
Skynet
Cal-Mag and N Deficiency in Flower? Thanks!
I'm guessing the yellowing and brown spots (in Wk 8 pics) are related to Cal/Mag and maybe a lack of N? Would love some advice from someone who's seen this before Thanks! I'm seeing this in all my grows to some degree- using FF trio and FFOF but not for much longer
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
5
3
Solved
Autogrowing
Do these look healthy? Thoughts? I'm new to hydro/growing
I have autos growing in a dwc system being fed half the regular amount of hydroguard, calmag, and grow/bloom. 1 plant is a week younger. The dark green plant looks like its leaves are clawing and has big brown spots on the leaves. The other has some brown dots and little yellow.
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
3
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
uktuk
Calcium / PH issues? Did I take the correct steps?
Am I on the right track to remedy my plant's issues? Seems like calcium deficiency to me. Soil test comes in at just under 6.5, my reservoir water going in is 7.3ph, in case its actually a lack of calcium and not the PH i've top dressed gypsum (and epsom salts).
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
3
Solved
TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?
Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn. The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
N_e_O
Send HELP!
I wonder if this yellow ton and even starting the orange should be from the strain of is getting burn? What can i do? reduce sun light? should i start feeding with veg suplement?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Weediz
Brown spots, PH in run-off is in the high end (6.5~)
I see some brown spots on my leaves. I thought it was Calcium Deficiency caused by too low PH so I gave them PH 6.5~ with 30% run-off, and run-off shows at least the same PH so I think it is not too low PH, could it be caused by something else? Maybe too high PH or light-stress?
Week 10
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
1
7
Solved
Togoutouseg
Feuilles jaune et marron!
Bonjour, j'aurai voulu savoir si vous saviez ce qui arrive à me plantes. Une d'entre elle se décolore, elle perds son vert qui jaunis. Et l'autre à beaucoup de mal à pousser, et ses pointes deviennent marron. Les feuilles se lève aussi. Merci beaucoup pour votre réponse.
Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Dark-brown
3y ago
1
3
Solved
StudentGrower
новые листья желтеют, а на старых появится пятна и опускаются кончики
Возникли жёлтые полоски на новых листочках и коричневые пятна на старых. Но цветок в целом не выглядит больным (возраст 3 недели)
Week 2
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Royalgorillaxx
Calmag excess or defiency??
So.. I have 4 flowering plants. I feed them the same stuff. Same quantity. 2 out of 4 showed some signs on the older eaves and i was wondering if its an excess or a defiency. Yellow with brown spots. Not a wind damage for sure.
Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Grazynka
Flush or what to do ?
Advice please. I watered yesterday but the stains on the leaves are getting worse. Now I don't know if it is deficiency of cal n mag due to nutritient lock out which might be due to ph being off as I have 5 reders and all of them show a different thing. 🤦♀️...or it is it rust?
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
1
1
Solved
zaMaurice
Moin, bei meiner Größen Pflanze fangen die Blätter an von außen gelb zu werden und braune Punkte zu bekommen. Ist das ein Zeichen von einer überdüngerung? Alle anderen Pflanzen haben dies nicht. Oder zu wenig?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
2
2
Solved
BrannabisTHC
PH problems?
Hey growers! These purple haze is in their 2nd week of flower. Only one of the two phenos are showing these symptoms. What might have caused this?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
Mini_Boss
HEEEELP
Need urgent help, everyone in rollitup saying it was a PK deficiency but the more bloom i give the worse it gets. Need help fast please before it all dies.
Week 9
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
Solved
Kripoulas
Deficiencies? Brown spots, yellowing and purple stems
What is this deficiency or maybe toxicity and whats the solution? She is fed with biobizz chart instructions but with every other watering. She is big so I'm guessing I should water with nutes every time? She showed this first week into flowering.
Week 6
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
5y ago
3
3
Solved
MrGrowthSpurt
Please Help me Help a Friend.
So a buddy of mine is growing outdoors, I'm growing indoors, we both are newbs, one of her plants is yellowing and decaying badly and she said she feeds 1 to 2 times a week rain water with no nutes and she doesn't ph the water. What could be the issue?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
4
Solved
AUTOASSASSIN215
Heat stress or Root rot ??
Hey my 7 month old plant not doing too good the leaves are turning brown and crispy Might be heat but then again Might be bud rot and it’s spreading like wild fire also i notice not a lot of flowering growth idk weather to chop it down or keep fighting
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
Solved
lladnekekrub
Deficiency?
I laid off the nutrients last week after some concern that I was overfeeding, but I think that resulted in a deficiency. (Some of the darker colors might be related to the strain? 🤔) The third picture was taken 12 hours prior to the first two, so it progressed quickly overnight
Week 10
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
WitekMajestatyczny
Leaves still goes yellow after flush with pure water 6.5pH, then only water with Biobizz Fishmix and last time all nutrients but 50% of recommended.
After last question with those symptoms, I flushed her with pure 6.5pH water, then next time started to adding only Biobizz Fishmix, and another next time I started to add all nutrients again but 50% of recommended. Buds, the white ends of the flowers begin to turn brown as well.
Week 6
Buds. Other
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
Cana_Gen
Weird burn
Thought I had a calcium deficiency but now I’m not so sure. Could have got a bit too much direct sun out of the tent. Any ideas on this ?
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1