The Grow Awards 2025 🏆 
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
leaves with brown spots
kira90started grow question a year ago
hi guys, do you know what these stains could be? Can you give me some advice please?
Solved
Leaves. Color - Dark-brown
likes
Hazeanswered grow question a year ago
Hello,
looks like PH Problems. If the newer leafs okay and the symptoms stopped no problem. If there will come more leafes in the middle and lower section like this on the picture i would check PH.
Similar Grow Questions
Solved
Iwanteatgelato
Brown little spots on leavesHi, I went on vacation for 4 days, the ec went from 1.2 to 0.5 and many small dots appeared on a lot of leaves. Do you think it's due to that ? The ph went from 6.2 to 6.4 but I don't think that's it...
Thank you for your answer :D
PeaceWeek 7
Leaves. Color - Dark-brown
4 years ago
1
3
Solved
GrowerNL
Rust on leaves PLEASE HELP!!Rust on leaves i water with pH 5,8 EC 2,0 i grow coco EC runoff 1,8-1,9 pH runoff 7,0-7,5 but pH runoff coco is not something to rely on i don’t use calmag want to use it since this problem i have given him some pK todayLeaves. Curl up
Leaves. Color - Dark-brown
Feeding. Deficiences
4 years ago
1
Solved
TopNotchBud
Whats wrong with her?I cant tell what's wrong with her. I recently upped my CalMag nutrients cause I originally thought this was a Calcium deficiency (full nutrient breakdown in diary). I dont want to hinder my harvest so any insight?Leaves. Color - Dark-brown
Feeding. Deficiences
4 years ago
2
2
Solved
MrGreenMan
What is going on here?Hey everyone, can someone take a look at my diary most recent pics. Sweet Amnesia Haze showing some deficiencies but no idea what it is, more micro needed? Using plenty bloom. All info in diary is accurate and coco runoff ph and ppm is on pointWeek 13
Leaves. Color - Dark-brown
4 years ago
1
Solved
dalilama
Brown spots on leaves ?Realised I have some brown spots.Week 5
Leaves. Color - Dark-brown
4 years ago
1
3
Solved
fiadhok
Hojas manchas marronlas hojas de mis plantan han comenzado a tener manchas, me han dicho que les rocíe con jabón potásico y aceite de neem en las noches, pero cada vez avanza mas. será falta de nutrientes? algún hongo ? o quemaduras en las hojas por potasio ?Leaves. Color - Dark-brown
Leaves. Color - Mottling
4 years ago
2
1
Solved
Mordeloth
Brown rusty spotsHi guys ! I got somes wierds spots like rust brown ish on the 2nd week of veg in autoflower. I didnt feed them a lot before ( like 1/8 of the reciepe ). Its only on the 2 bottom leaves.
26 degre
60-65% humidity
purple lemonade auto fastbudLeaves. Color - Dark-brown
4 years ago
1
4
Solved
Elendil
Too much nutes?Is this from too much nutes ?Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4 years ago
4
3
Solved
Jayvo
Is this a deficiency or light burnHi all my other plants are perfectly fine except for this one it has brown edges on the leaves and has been growing the slowest out of all my plants and I was just wondering how I could fix this? I checked the run off PPM yesterday and it was 1100 so I flushed it and now its 7004 years ago
3
2
Solved
TopNotchBud
Diagnose my plant :)Is this a Calcium deficiency? I neglected her for a few days but time to solve it nowLeaves. Color - Dark-brown
4 years ago
2
Solved
Vitora
Yellow leaves - moby dickThe olders leaves started to die and to turn this yellow-brown color.
I thought it could be the temperature (I am about to receive my temperature hydrometer to measure that), or over/less watering, or nutrients.
The plant looked great a week before.Week 4
Leaves. Color - Dark-brown
4 years ago
2
3
Solved
Budmarley2221
DeficienceyCan anyone tell me what is cauing this i thought a calcium deficiency ?Week 4
Leaves. Color - Dark-brown
4 years ago
4
3
Solved
ThcSrb
Spots on leaves and little twisted...Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?4 years ago
1
5
Solved
JoseTodoLoco
Damaged leavesI have a problem with one of the plants, the leaves are damaged and some of them had to be removed, the plant is growing too slow. I thought it is related to Cal/Mag but I've been adding it for a while since week 2 and the problem is not correctedWeek 5
Leaves. Color - Dark-brown
4 years ago
1
3
Solved
Wimpy
Brown spots watering in coco multiple times a daySeeing brown spots on the leaves. Assuming it's a calcium deficiency. Added another ml/gal of Cal-Mag for the daily feeding. Besides that, what else could it be? Also, at what point do you water plants in coco twice a day?Week 7
Leaves. Color - Dark-brown
4 years ago
4
2