Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Discoloration
organigrower69
started grow question 5y ago
Two of my leaves have serious discoloration coming from the middle of the leaf
Solved
Leaves. Color - Black or grey
likes
Gerard_1
answered grow question 5y ago
Revisa las dosis de nutrientes ya que no están siendo suficientes, ahora si no haz comenzado a fertilizar ya es hora de comenzar con pequeñas dosis 💪
likes
Complain
Selected By The Grower
organigrower69
answered grow question 5y ago
I have not amended at all. I guess I need to start adding nitrogen? I will do more research and then start small.
likes
Complain
Similar Grow Questions
Solved
FiFrElOt
Demande de diagnostic
Bonjour, je suis actuellement en semaine 7, mon problème dure depuis la semaine 5 et je n'arrive pas à l'identifier... Quelqu'un à déjà eu un problème comme celui la?
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Feeding. Deficiences
5y ago
2
2
Solved
growbie
What deficiency it can be?
what deficiency it can be? its start from upper fun leaves
Leaves. Color - Black or grey
6y ago
2
2
Solved
ZhugeTsuki
Still cant figure out what's going on with this plant. EC was over 2 for a couple of days but has since been taken care of, last reading was .83.
Is this a deficiency or some other kind of issue? Some have suggested a p or k deficiency, but I feed Jack's 20-10-20 peat-lite so I would be very surprised if it was a P problem, and the problem seems to be all over the leaves, but a lot of them start from the base of the leaf.
Leaves. Color - Black or grey
Other. Mold
6y ago
3
Solved
Slickchigdog
Is this a calmag problem?
What problem do i have? Is it calmag? Help please. I grow in lightlix biobizz and with biobizz fertilizer
Leaves. Color - Black or grey
10mo ago
1
1
Solved
PurpGod
Nitrogen toxicity? Kind soil
How to treat nitrogen toxicity in roots organic soil with kind living soil in bottom 1/3 . only watered 6.0 purified water.. week 3-4 flower
Leaves. Curl down
Leaves. Color - Black or grey
Other. General questions
6y ago
2
3
Solved
Dippp
Problem with plants in the 3rd week of vegetation.
Hello everyone, I am new grower, in the 3rd week, I started having issues with the leaves. Does anyone have a diagnosis for this? I am using I am using Advanced Nutrients (Coco Grow A and B, B-52, Voodoo Juice) Coco Soil Temp: ~26 C Rh: 60-65% Feminized seeds Thanks :D
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Black or grey
2y ago
1
Solved
DrJoint
PH issue ?
Hi guys! Could you please advise what is the problem with my Chempie and how to deal with this issue ?
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Plant. Stem - Red or purple
6y ago
3
2
Solved
Mcnuffy
Leaf colour black
Week 5
Leaves. Color - Black or grey
3y ago
8
4
Solved
The_Wanderer
Anthocyanin pigments / colors
What colors besides black or purple does cannabis make that you have personally seen?
Leaves. Color - Black or grey
7mo ago
4
4
Solved
Lil_Teddy
what cause it,Is it normal?
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
6y ago
2
5
Solved
BudXs
Please see the 2 photos marked in the diary. Is this a classic PK burn? Did a feed with no MegaCrop, no cal-mag, just PK boost at diluted dosage. The coppering and yellowing has come sudden. Leaves are crispy where burnt. I hear its easy to burn with PK boost. Did I do that?
Week 13
Leaves. Color - Black or grey
7y ago
5
2
Solved
BeardedTree
I posted some photos of my soil white cookies in week 14 of this diary. The sugar leaves are white almost looks bleached. Its stacked with trichs but is white and I dont know if that's good or bad. Nothing dieing and theyve been white for 3 weeks. No sign of mold, stress, nothing
Week 15
Leaves. Color - Black or grey
8y ago
3
2
Solved
Karalis89
Ciao amici, sapete dirmi cosa può essere? Devo preoccuparmi? Sembra stare bene ed è l unica foglia macchiata,può essere dovuta a dell' acqua per sbaglio caduta sopra ? Grazie
Week 4
Leaves. Color - Black or grey
4y ago
3
3
Solved
furphy
Blackening leaves on 2 week old seedling.
Any ideas what has caused the blackening on the leaves? More effects of the overwatering? Hope it's not a lost cause but I'm losing hope.
Week 1
Leaves. Color - Black or grey
6y ago
2
1
Solved
420throwaw4y
Is this sign of nutrient lockout? I have moved her to a bigger pot now, that said I’m worried I’ve been testing my PH wrong, I uploaded a pic (day 26) is she starving? Up til now I haven’t fed her anything but water
Week 5
Leaves. Color - Black or grey
7y ago
2
2
Solved
Australianbuds
Leaves turning funny
Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf
Leaves. Color - Black or grey
2y ago
1
1
Solved
Terp_Djiny
What could this be?
I have no idea what this could be! It came in one night and affected several sun sails. Pnly small black dots. The environment has not changed. Continuous temperatures and a relative humidity of 40%
Week 21
Leaves. Color - Black or grey
6y ago
2
2
Solved
Zark002
strangely growing leaves.
hi guys, after doing a defoliation and someone ties, some smaller branches from the bottom started to present this problem where the new growth should come, do you know what it could be and how to fix it?
Week 5
Leaves. Color - Black or grey
4y ago
3
Solved
The_Wanderer
Help! Black Weed!
Help! Almost ready to harvest on the winter solstice. Black weed
Leaves. Color - Black or grey
7mo ago
9
8
Solved
womba
Leaf spot fungus? PH/Nute problem? More calmag?
So my climate and numbers all look good so these are my theories Leaf spot PH/Nute burn Deficiency I havent watered till heavy runoff much at all i only did it after i saw this on the leaves. Not sure what i should treat this like
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
1mo ago
3