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Back to Grow Questions
Problem
Sanabassan
started grow question 2y ago
New Problem . How Can i fix this?
Solved
Leaves. Color - Dark-brown
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GorkedOut
answered grow question 2y ago
does the leaf feel leathery? It was probably under watered or over watered at one point and the ph was slightly off. Nothing to worry about if it's just the bottom fan leaf. Just re adjust next time and you will be fine.
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Selected By The Grower
Ultraviolet
answered grow question 2y ago
Also check ph make sure it's not too acidic.
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Ultraviolet
answered grow question 2y ago
.Cannabis plants turning light green all over is usually a sign of nitrogen defficiency.
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Similar Grow Questions
Solved
BGrow1983
J1 older fam leaves getting brown spots and yellow dried up tips. Rest of the plants look fine. See pictures above. I know it’s hard to see so I will try and get better pics later.
Week 9
Leaves. Color - Dark-brown
8y ago
3
2
Solved
haftanara
I know there might be millions things causing these but maby this is some common problem with hydro? Do things like this usually come along with root problems or have i messed up some other obvious thing? Other details in weekly/pics
Week 4
Leaves. Color - Dark-brown
7y ago
1
2
Solved
jbirdstheword
Fungus or deficiency?
I have these gals growing outdoors and have a few leaves that look like this. Appeared after multiple heavy rain days. Applied nutrients yesterday so I still need to wait for the results. Is this a sign of fungus or deficiency?
Leaves. Color - Dark-brown
5y ago
1
6
Solved
Heisenberg420
Day 9 I noticed one of the girls has 2 small brown spots on one of the leafs. I have the spots circled in the pictures. Could this be a calcium deficiencie? Thanks!
Week 2
Leaves. Color - Dark-brown
7y ago
4
3
Solved
CollectiveSol123
How can I fatten my buds up..new LEDs soon..that will help..
Week 28
Leaves. Color - Dark-brown
7y ago
1
1
Solved
TiRobotProds
Tâches brunâtre
Tache brunâtre sur les feuilles du bas de la plante qu'arrive-t-il a cette dame?
Leaves. Color - Dark-brown
4y ago
2
Solved
KrautFabrik
Some pistols turning brown. It's the 4th week, seems a bit early to me. Some idea?
Week 12
Leaves. Color - Dark-brown
7y ago
10
4
Solved
Growit2321
New growth problems
Is this a calcium deficiency? Noticed it the worst on the newest growths I’ve got slow growth as well. At first i thought it was bugs but then I noticed darkening it leaves and more spots showing up even after checking for eggs( none found)
Week 3
Leaves. Edges burnt
Leaves. Color - Dark-brown
6y ago
1
2
Solved
Cannapprentice
Burned upper leaf edges
Hi! Dark spots appeared on some upper leaves overnight. I don't think this is the cause, but I did a pretty heavy defoliation the day before. the spots only affects leaf margins and makes the tips curl up. The spots are brown, burned and slightly purplish. what could this be?
Week 5
Leaves. Color - Dark-brown
6y ago
2
Solved
Growernotshower1
Deficiency?
Anyone seen leaf damage like this before? 6 weeks into veg in FFOF. A few fungus gnats but no real infestation. Not adding any nutes yet. Really concerned as the plant is looking less green and more yellowy than it did last week.
Week 5
Leaves. Color - Dark-brown
5y ago
2
1
Solved
CreamOfTheCrop
Brown/Grey spots on the leaves
Hey, I hope this is my last question for this grow :P I've noticed some brown/grey spots on the yellowing leaves, what could they be, deficiencies or sunburn? I'm still feeding the plant with nutes, but the next watering will be a flush, so I didn't expect discoloring before that
Week 11
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
6y ago
1
1
Solved
420loss
Bronze spots
What could be this spots? Found 4.
Week 7
Leaves. Color - Dark-brown
4y ago
18
8
Solved
live_canna
Leaves brown down the length of half the leaf
I have some leaves that have gone a bit brown down one half, but along the length. See them in Day 40 pics (I have added a extra comment there). Does anyone know what that is? I was thinking maybe it is just the bits that have been sitting under other leaves, but I am not so sure
Week 6
Leaves. Wilting
Leaves. Color - Dark-brown
6y ago
2
3
Solved
ivanosch
Dry yellow and brown leaves
All plants get same nutris and water, what is the problem with some of them? Need help 600ppfd 69 f 55-60 humi Ec 1,2 plagron grow + root power
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
3
Solved
Flyalivebeats
Leaves have brown spots
Any idea what these brown spots could be?
Leaves. Color - Dark-brown
4y ago
1
6
Solved
SaiMutsu
N or P deficiency?
Need help to understand if this is P or N deficiency. It's on the lowest fan leaves, one is more pronounced than the other, and it's mostly on one side. Stems and veins look like they're giving hints of P def but from what I searched leaves look like it could be N def.
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
2y ago
3
3
Solved
Wildgrass
Leaves turning yellow with brown patches
I noticed the first real leaves on one of my plants turning yellow in FFOF. I transplanted them into bigger pots with ProMix M in hope that it would stop. Condition seems to continue worsening. I have started to notice the cotyledons on some of the plants turning yellow.
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
2
Solved
Professor_Daank
Is this Calcium Defic? What to do to fix?
Week 9 flower. Rust spots on leaves. Starts at top. This can only be calcium defic from ALL the research I've been doing. Can anyone chime in? I foiler spray a CalMag before lights out and I've added some more to the nute mix. 6.2 pH, runoff seems good.
Week 10
Leaves. Color - Dark-brown
6y ago
1
3
Solved
THC123
Brown/Gold Stripes?
What is this? I read it’s Mag deficiency, but I put more CaliMag in yesterday during the res change. PH remained the same as well, 6.0. I topped yesterday as well. Any ideas?
Week 4
Leaves. Color - Dark-brown
6y ago
2
3
Solved
Medi_K8
Browning of plant 1 lower leaves
Guidance please, On my 1st plant it looks like it has a pH issue however my other plants don't have any signs of a problem. I don't have a pH meter but have test strips and I have not seem an issue with my water. Is the browning on some of the lower fan leaves normal?
Week 8
Leaves. Color - Dark-brown
5y ago
2
2