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Back to Grow Questions
Leaves have brown spots
Flyalivebeats
started grow question 4y ago
Any idea what these brown spots could be?
Solved
Leaves. Color - Dark-brown
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Roberts
answered grow question 4y ago
You are experiencing progressive potassium deficiency. Light nitrogen and heavy potassium are phosphorus in flowering. Good luck🌱
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Selected By The Grower
Coopmc
answered grow question 4y ago
You should find answered hear I sugest finding a feed scheadual and follow it
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Coopmc
answered grow question 4y ago
https://www.royalqueenseeds.com/blog-cannabis-nutrient-and-deficiency-table-n88
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Coopmc
answered grow question 4y ago
https://www.botanicare.com/faqs/can-i-foliar-spray-with-cal-mag-plus/
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Coopmc
answered grow question 4y ago
https://growace.com/blogs/learning-center/how-to-fix-nutrient-lockout
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Flyalivebeats
answered grow question 4y ago
So what should I do?
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Similar Grow Questions
Solved
koronkonko
What is this symptom?
Have a symptom of something that I could not understand. Started with yellow color from the edge of leaves, suddenly become a brown/yellow color and top of the leaves dried too fast like burned. any ideas? under plant: pH 6,6; EC 1,7;
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
7
Solved
Mushyman420
Brown spots on older fan leaves
Spotted some brown spots on 2 of the older fan leaves today. Any thoughts on what the issue may be? Does not rub off- was worried about rust at first. Some more info that could be helpful is that I am using RO water. Thinking about rasing the lights a little higher up too.
Week 3
Leaves. Color - Dark-brown
3y ago
5
11
Solved
Kjf_grows
Help, first time with autos
My ladies are 11 days old and I woke up to this. Last fed 2 days ago with a and b by coco at 50%, ph at 5.9 I have done a quick flush and the run off came out at 6.1 temps are a constant 25°c with a humidity of 60%. All plants are currently under a 400w mh bulb.
Leaves. Color - Dark-brown
4y ago
3
Solved
Jules216
Spots on leaves
Any ideas why these Brown spots appeared so quickly?
Leaves. Color - Dark-brown
1y ago
3
Solved
G_news
Little brown discoloration on older leaves
Hey all so how do these 3 plants look? Only one has some discoloration since then I changed the water Ph6 ish Ec 1-1.3 Ppl500-700 These are rough averages
Week 4
Leaves. Color - Dark-brown
4y ago
2
2
Solved
elevensixty6
Deficiency?? Excess? Neither?
Grown this strain before and had the same issue.. not sure if its a CalMag deficiency entirely. pH has remained at 6.0-6.5 or so in soil and didnt show signs until recently, seemed to have worsened after just two days of only CalMag and Ro water so I bumped up the bloom nutes.
Week 5
Leaves. Color - Dark-brown
Feeding. Deficiences
4y ago
3
3
Solved
Jonnytats
Please help!! What is this?!?
Please helpppp!!!! Anyone tell me what is going one here? My first grow and she already been through a lot trying to save her. Feminized white widow from crop kings around week three of veg but severly stunted growth from being pulled out by a dog three day ago
Leaves. Curl down
Leaves. Color - Dark-brown
Leaves. Other
4y ago
2
2
Solved
ClaireCrystal
Skittles plant with brown spots
One of my skittles plants is starting to get these brown spots with a yellow outline. Any advise is appreciated!
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
1
4
Solved
DrNickerbaucker
Brown spot help.
See the leaves in the pictures. There are some brown spots. Any help as to what it may be will be appreciated.
Week 9
Leaves. Color - Dark-brown
4y ago
4
4
Solved
ArdoremArdorem
Is this anything to worry about?
Day 23. Noticed a few tips turning brown but plants look green and healthy, is this anything to worry about and will it effect my yield?
Leaves. Color - Dark-brown
4y ago
1
1
Solved
Dillsnills
Coloring on leaves?
Wondering what this coloring is on the leaves, it's a darker color kinda brownish almost. This is my pineapple express I fed her 4 pints of jus ph'd water 6.4. feeding prior fed ff growb bigb tigerb chaching ffof soil. My temp at night has gone down a couple of degrees d-n 75-69.
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Bigbugs1
Help me
I use biobizz fertilizer. I'm moving forward by rising step by step per pot and doing 2 full 1 empty watering, I'm doing 3.5lt irrigation, my latest fertilizer table grow 3ml/L bloom 3ml/L top max 1ml/L alga a mic 3ml/L cal mag 1ml/L Ph6.4, but the problem seems to me like calciu
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
3
Solved
GreenGrocerN4
Any Idea's on the issue?
Found a brownish mark on a couple of big fan leafs, I'm assuming its a nutrient problem but not sure any help would appreciated. Thank you. 100w LED Bio Grow 2ml/L
Leaves. Color - Dark-brown
5y ago
1
1
Solved
sompas
Cannabis leaf symtomp
Need help Day42 what wrong with this plant
Week 6
Leaves. Color - Dark-brown
5y ago
4
Solved
KOKOK
Help my plant
Hey, i see something wrong with my plant, untill Day 10 she was under the cfl lamp n every thing was ok, at the Day 11 i switched the light to LEd and this happend:( İ noticed when i compare the photos of the day 11 with Day 10, please help me im nervous, Thanks. What you think?
Week 2
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
3
3
Solved
eurorack
Leaves on Pink Kush CBD
Any hints on what this might be? Check the full diary for nutes and stuff, maybe time to stop the PK13/14 and CalMag now they have pushed a load of flowers out?
Week 7
Leaves. Color - Dark-brown
3y ago
2
2
Solved
antekirtt
End of Cycle or something to be afraid
Hi everyone, I think the brown leaves just reflect the end of cycle (WG started flushing 4 days ago, DSD33 today). I don't see signs of mold or something rotting, brown leaves do not detach, both plants show already some amber trichomes. What do you think?
Week 6
Leaves. Color - Dark-brown
3y ago
2
8
Solved
Debutant_dream23
Excès d'azote
J'ai un excès d'azote en fin de floraison sa fait une 1 semaine que je rince à l'eau claire et m'a planté reste toujour au vert foncé qui peux m'aider merci
Leaves. Color - Dark-brown
5y ago
3
3
Solved
Kenny82
Browning sugar leafs on autoflowering skunk#1 during week 5vof flower
Using soil and organic dry amendments, I'm doing autos and in week 5 of flower, noticed browning on my sugar leafs but don't no what I should do, should I leave it or should I try to sort it just not sure how?
Week 5
Leaves. Color - Dark-brown
3y ago
2
4
Solved
Havingago
Suffering seedlings
Seed 1 is suffering and both plants probably stunted. Should I let these dry up then give a full dose (canna schedule) of coco ab and some cal mag?? Thanks in advance 👍
Week 4
Leaves. Color - Dark-brown
6y ago
5
4