The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Blackening leaves on 2 week old seedling.
furphy
started grow question 6y ago
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.
Solved
Week 1
Leaves. Color - Black or grey
likes
guspirinhes
answered grow question 6y ago
look like microfungal, you water it a lot?🙏 Before you undo ... try cutting those leaves, you might save the others... luck bro😃
2 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
NicoKh
bad leaves
Some leaves in a bad looking don't know why, i think is overfeed or smthn what do you think? them are on the middle of the 5th week of flowering
Week 9
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
2
2
Solved
einamio
I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage
At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?
Week 5
Leaves. Tips - Die
Leaves. Color - Black or grey
Feeding. Deficiences
1y ago
5
5
Solved
Magic43562
Black growth seedling
One of my 10 day old purple punch seedlings has some black stuff on its new growth in the center. My older PP had it too and she’s big now and doesn’t have it anymore.Still is this anything to be concerned about?
Leaves. Color - Black or grey
5y ago
4
Solved
Ner0z
Is this leaf septoria?
Here we go again. What am I looking at here? Is this leaf septoria? How should I tackle this one lol
Week 2
Leaves. Color - Black or grey
5y ago
4
3
Solved
longearringboy420
Black spots on leaves
Black spots present on some fan leaves. During ~3rd month right now. Watering with HESI in Coco Coir, PH ~6 every time, 1/2 runoff water. For about 2 weeks prior to this, I also added very small amount of kelp powder. Soil seems fine.
Leaves. Color - Black or grey
2y ago
2
Solved
Glen1818
Nutrient Burn ?
Hello, can some one Tell me whats this is ? only one of four plants had this problems im watering when its dry , 2.8-3.3L
Week 9
Leaves. Color - Black or grey
4y ago
3
4
Solved
ZhugeTsuki
What the actual heck is going on with these leaves
Leaves from all around the plant are showing these symptoms. Much more detailed info in grow diary but current runoff ec is 1.7 and problem is spreading quite badly.
Week 7
Leaves. Tips - Die
Leaves. Twisted
Leaves. Color - Black or grey
6y ago
1
3
Solved
DrBuffy
Darkening and curling of fan leaves
What is causing darkening and downwards curling of the fan leaves? Started a few days ago, concerned if I don't fix it now it will spread and stunt my plant
Week 6
Leaves. Curl down
Leaves. Color - Black or grey
Setup. Strain - Autoflowering
5y ago
1
Solved
Apolloo
Gray spot
Hello everyone! Some of my leaves have small gray spots on them, like the ones in the picture. What could be causing this?
Leaves. Color - Black or grey
4y ago
1
Solved
m1kax
Leaves with Spots brown/yellow.
this is my 1st grow, they are autoflower and this is day 60. ec from last runoff was ok. ph was 5.95 maybe is too low, but im already give him high ph they start getting this stains week ago i change my light recently, and i got high humidity last week like 80%.
Leaves. Color - Black or grey
2y ago
1
1
Solved
Zuzuman
Mehrere Mängel
2. Grow mit Gorilla Cookie Autoflower Samen. Hinten links sehen die Mängel aus wie hinten rechts, denke Phosphor also laut Bildern und vorne ist so ziemlich vieles gemischt aber extrem. Der einzige Bud der richt wenn man ihn anfasst ist der von der hinten rechts die anderen nicht
Buds. Not fattening
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
4mo ago
2
Solved
FiFrElOt
Taches noires sur les feuilles
Demande de confirmation de diagnostique: J'ai remarqué des taches noires aux extrémités des feuilles. Je pense qu'il s'agit d'une carence en phosphore? J'ai un peu tardé à nourrir ma plante. Dans mon dernier arrosage: Ph 6.5 EC : 1.8 Terra bloom, green sensation, pure zym. Merci
Week 5
Leaves. Color - Black or grey
4y ago
1
1
Solved
Albgrow
Hello guys! A have a big problem
Hi there. Today while checking my lovely flowers i found this plant woth this kind of leaf. It has more than one leaf like this the same plant. Anyone has any idea
Leaves. Color - Black or grey
5y ago
2
2
Solved
portcityplug
Flower development
I'm starting my week 3 of flower I'm starting to notice inside of my canopy some of my leaves in Bud sites are getting very wilted and going black could this be the start of a mold or is this a natural thing should I remove anything that looks like this ? Also my humidity is 70
Leaves. Color - Black or grey
5y ago
1
1
Solved
Bochica
Hello growers please help on this one, since yesterday the leaves are getting curled, yellow stains and kind of black on the leaves, you better see the images. In the third image you can see how the leave is getting these black/golden color. Any suggestions? Ty
Leaves. Color - Black or grey
2y ago
2
4
Solved
darbyog
Black marks on leaves of a slow grower.
Noticed there's black markings on the edges of the leaves on our slowest growing plant. My initial thought was water droplets sitting on it before it had fully broken out or could it be something else?
Week 2
Leaves. Color - Black or grey
5y ago
1
1
Solved
hoosierj
Can anyone tell me why my leaves are curling up
Leaves. Color - Black or grey
5y 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
3mo ago
1
1
Solved
ScottShelby
Weird spots!
HELP me out please , what the plant is trying to tell>>?, I'm using CFL lights, watering with 300ppm and 6 pH
Week 3
Leaves. Color - Black or grey
4y ago
2
2
Solved
GrowYourFive
The problem in plants when I supplying CO2
Hello! After adding CO2, I noticed problems on the leaves of my plants. Grow in coco+perlite, water with 1100ppm solution, 1000ppm co2 in air. Drain from the right 1400ppm and 1800 from the right. Is it related to co2 and irrigation system?
Week 5
Leaves. Color - Black or grey
Feeding. Automatic systems
Feeding. Chemical composition
3y ago
2
2