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Back to Grow Questions
Grey leaves
herbalistssword
started grow question 6y ago
Noticed some leaves getting a brown grey colour. Any idea what this is? Seems to only affect leaves on one branch
Solved
Week 19
Leaves. Color · Black or grey
likes
MangoDudu
answered grow question 6y ago
I think calcium deficiency next to the clorosis the leaf will start necrosis if is calcium def ✌️🏽
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Selected By The Grower
Similar Grow Questions
Solved
Mekster
Week 2 flower.Buds turning black
Buds and leaves under are turning black, any advice? Something to worry about?
Week 6
Buds. Other
Leaves. Color · Black or grey
3y ago
3
2
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%
… Show more
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Black or grey
2y ago
1
Solved
Indica_Monster
IWhat does the tree say?
What does the tree say . Am I over-fertilizing?
Week 1
Leaves. Color · Black or grey
3y ago
5
4
Solved
PolishFarmer
Coco grow problem
Hi Guys! I have issue in my grow. Girls are in 9th week from seed, 2nd week flowering. Coco substrat pH 5.8 EC 1.0-1.1 temp 23/24 humi 50%. Water EC 0.1 + calmag up to 0.2-0.3, Coco a/b up to above value 1.1-1.2/ph5,8. I believe that are deficiencies by too low ph for bloom stage
Leaves. Color · Black or grey
5y ago
1
2
Solved
MEDICAT
What happened to the leaves?
What happened to the leaves? Was it caused by too much water? (Coco ph5.8)
Leaves. Color · Black or grey
5y ago
4
3
Solved
tiasmaaa
Phosphorus deficiency ?
I'm not sure but I think it's a Phosphorus deficiency, right ? And if it is, how can I fix that ? just adding more alga bloom ?
Week 10
Leaves. Color · Pale
Leaves. Color · Dark-purple
Leaves. Color · Black or grey
4y ago
4
3
Solved
Romobo16
Black spots
It's the last clon from that strain that I have (There are no longer seeds for sale) after saving her (She was in terrible conditions) she was growing great this last 5 days until yesterdays that I saw this black spots. PPM 670-PH 5.78-WaterT 68.7-AirT 71.6-PPFD 120-Humidity80%
Leaves. Curl up
Leaves. Color · Black or grey
2y ago
2
Solved
ChefdexV2
Deficiency? P?
Looks like my girls have some deficiency, anyone know what it is and how to fix it organicly? Looks like potassium to me?
Week 3
Leaves. Color · Black or grey
3y ago
1
3
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.
I'm posting again because I accidentally marked it as resolved. I was using BioBizz CalMag from the beginning, but when I switched to Advanced Nutrients, I stopped because Ph Perfect Sensi Coco Grow A and B already contain CalMag.
Leaves. Curl up
Leaves. Curl down
Leaves. Color · Black or grey
2y ago
1
2
Solved
BadGrower
I’ve never seen this before?!
Weird spots on leaf’s I’ve never seen before. Growing in coco with dry amendments and worm castings. Ph 6.7/6.5. Just gave some compost tea earlier today. And earlier this week some GH calmag because some of them are showing deficiencies for that. But what are these weird spots?
Leaves. Color · Black or grey
5y ago
5
Solved
Soter
Fat Banana Auto coloring
Fat Banana Auto, it's a giant compared to the others, and it seems very thirsty. 2x1,5L a day in coco, and it dry this evening. But what are the different grayish color on the leafs?
Leaves. Color · Black or grey
6y ago
1
2
Solved
HighGrower89
Dunkle Flecken auf den Blättern.
Hey.. One of my White Widows has been getting dark spots on the leaves for days, and today I also noticed the first spots on a Blue Dream.. Can someone tell me what’s going on and how to get rid of it? Removing the affected leaves hasn’t helped.
Leaves. Curl up
Leaves. Color · Black or grey
5y ago
1
2
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
Clutch
What leaf problem am I dealing with?
Fan leaves are turning black from the inside to outside. What's going on here?
Leaves. Color · Black or grey
5y ago
3
4
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
6y ago
2
2
Solved
Frm11001
Mi situación empeora! AYUDA
VERY COMPLETE DESCRIPTION IN COMMENTS!
Leaves. Color · Black or grey
5y ago
4
6
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
Tea time for health benefits?
What are the health benefits of fresh black cannabis leaves eaten, or made into a cold brew / infusion tea that is different than green leaves?
Leaves. Color · Black or grey
8mo ago
7
5
Solved
AntiWar
Spots on the leaves and they're curling. What's the problem?
Leaves. Color · Black or grey
3y ago
2
4