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
Leaf discoloration.
Magic_Chelsea_Crew
started grow question 5y ago
I've encountered this leaf discoloration and I don't if it's a ph or a nutrient related problem. I also noticed these are directly under the light. cob light.
Open
Leaves. Other
likes
Answer
NewJackWeed
answered grow question 5y ago
It looks like nitrogen toxicity. Signs are usually dark- green waxy leaves pointing downward. Less nutes and more plain water until she recovers!
likes
Complain
Similar Grow Questions
Solved
EXZELENS
Is that calcium deficiency?
Idk exactly what it is, so if anyone is sure of it I would be happy to know! Thanks in advance!
Week 5
Leaves. Other
6y ago
1
1
Solved
Killerbubu
Horário 12/12
Ola, o porque de iniciar um cultivo sempre com o mesmo horário ? 12/12? Tem alguma vantagem ?
Week 1
Leaves. Other
Other. Other
Plant. Other
5y ago
1
2
Solved
potfromgreece
Spots on leaves
EMERGENCY! Strange spots on the leaves and white plaque on the other side. What should i do??
Week 3
Leaves. Color - Dark-brown
Leaves. Other
6y ago
5
Solved
yomi23
Bugs? Deficiencies?
Yellow spots, red spots, and eaten new growth Help
Week 7
Leaves. Other
6y ago
1
2
Solved
Septooth
Holes in leaves
What is doing this to my leaves? Couple on top have tiny holes in one on bottom as a bigger hole.
Leaves. Other
6y ago
2
2
Solved
Zer0xKira
Confirm Nitrogen Toxicity ?
I believe my plant is beginning to develop nitrogen toxicity. The leaves are dark green and shiny. They are also thick and feel tougher than the leaves on my other plant
Leaves. Other
6y ago
1
3
Solved
Roxie_xx
Nute Burn Issues
Approaching week 7 my plants are in early flower but a few of the leaves have nutrient burn I wondered if there was away to correct this I think it’s from splashes when I had someone help me feed them
Leaves. Other
6y ago
1
1
Solved
Prilyfe13
Should I remove dead fan leaves before harvest?
Should I take these dead leaves off? She only has about a week left. Or should I just leave them? She is fading very nicely, just want to know if they are beneficial anymore. Thanks!
Week 11
Leaves. Other
3y ago
5
6
Solved
madmatt33
Leaf margin burnt or bugs?
Anyone seen this before? The leaf margins look burnt or perhaps bugs?
Leaves. Other
6y ago
3
4
Solved
CreamOfTheCrop
Mold/Fungi
Today I've found white spots on some of the leaves. What could it be? Mold/Fungi? I've been strugglin real hard to keep the humidity below 50%, but due to the constant rainstorms I only manage to get it to 54% at daylight and 58-60% at nightime :(
Week 9
Leaves. White powder
Leaves. Other
Other. Mold
6y ago
1
2
Solved
Dankbudz84
How do they look for my first grow
How do they look for my first grow? 2 white widow on the back 1 white widow on the front left and 2 purple kush on the from right.
Week 12
Buds. Other
Leaves. Other
5y ago
2
6
Solved
Growernotshower1
Cal deficiency?
Found this old growth… calcium deficiency? Im now feeding calmag.
Week 9
Leaves. Other
5y ago
1
Solved
FrostyCloudzz
Are the leaves heathy?
sehen die Blätter ok aus ? die einen sehen etwas pelzig aus oder täusche ich mich ?
Week 3
Leaves. Other
Other. General questions
Plant. Too short
5y ago
7
3
Solved
Growerxm00
Yellow tips
Hey, having some yellow tips light isn’t too close to the plants what can it be? And it’s just on one plant
Week 3
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Other
2y ago
7
5
Solved
Thechronic901
Leaves
Hows it going I've got my white skunk auto outside growing well but its started growing 3 leaves instead of the 5 is this to be of any concern because the plant itself looks healthy ? It's currently having its growth spurt also just to add
Leaves. Other
6y ago
1
3
Solved
Newfie80
Spots on leaves
Some spots showing up on one plant, wondering what the cause is
Week 7
Leaves. Other
6y ago
2
2
Solved
Tobecobe
Powdery Mildew?
Is this PM? Do I need to spray the entire plant with milk water and cut the whole branch? This is the only spot its visible. How do I avoid light burn on the leaves after spraying?
Week 7
Leaves. Other
4y ago
1
4
Solved
6ix6ix6ix
Leaf stems change color
Greetings, dear Growmies! Growing NL auto by Sensi On 2 of 3 plants the petiole (leaf stem) turned red on upper (facing the light) side. The bottom side is green. Is it a sign of any deficiency or disease? Couldn't find on the web.
Leaves. Other
4y ago
8
5
Solved
flatwhitenosugar
Please help! Contorted, darker green and slightly shiny leaves with spots.
Do you think this looks like a nitrogen toxicity issue? Is it likely because I made a mistake using mainstream potting mix with slow release fertiliser in it? If so, will a flush or multiple flushes help, or should I transplant to better quality, organic soil? Thanks in advance!
Week 3
Leaves. Other
5y ago
1
5
Solved
Joyfull420
Issues with new growth
Worried about new growth, leaves look strange, only my second grow so could be nothing, cheers guys
Leaves. Other
6y ago
2
2