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Back to Grow Questions
Leaves have brown spots
Flyalivebeats
started grow question 5y ago
Any idea what these brown spots could be?
Solved
Leaves. Color · Dark-brown
1 like
Roberts
answered grow question 5y 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 5y ago
You should find answered hear I sugest finding a feed scheadual and follow it
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Coopmc
answered grow question 5y ago
https://www.royalqueenseeds.com/blog-cannabis-nutrient-and-deficiency-table-n88
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Coopmc
answered grow question 5y ago
https://www.botanicare.com/faqs/can-i-foliar-spray-with-cal-mag-plus/
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Coopmc
answered grow question 5y ago
https://growace.com/blogs/learning-center/how-to-fix-nutrient-lockout
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Flyalivebeats
answered grow question 5y ago
So what should I do?
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Similar Grow Questions
Solved
Peweez
Could someone help me to identify the issue my plant has?
This girl isn't looking healthy anymore and I need to figure out why. What I did: I topped her pretty early but she recovered well (you can see it in my grow diary). A week later I transplanted her from 0.5L pot to her final autopot 14L. After that she had a hard time recovering.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
2
3
Solved
CrankledLarkus
Ongoing brown and yellow patches forming in week 6 of flower
I've also noticed today a couple leaves looked wet, so tried to wipe it off but that did nothing. I took 2 pictures of the same leaf at slightly different angles to see the shine. It's only the skunk effected (closed similar question prematurely in skunks diary)
Week 14
Leaves. Color · Yellow
Leaves. Color · Dark-brown
7y ago
3
2
Solved
Ktims420
I water my plants everyday , however I have mixed my nutrients “ph perfect grow, micro, and bloom” in with my water only the appropriate amount given on the bottle. Should I be using water with the nutrients everytime I water or switch it up with plain water as well?
Week 2
Leaves. Color · Dark-brown
8y ago
2
1
Solved
KCduzit
Brown spots on bud site leaves?!
halfway through flower and now in week 6 flower one of my plants is showing some large brown spots on only the upper leaves. I’m not sure if it’s a light or ph issue as the light is close. I stopped cal mag and some nitrogen this week but spots were showing up before.
Week 14
Leaves. Color · Dark-brown
Leaves. Other
6y ago
2
2
Solved
handaman
Brown spots on tips of some leaves
4 leaves affected on only one plant. All plants are receiving same feeding and are from same clones. Based on photo and googling it looks awfully lot like P deficiency? I'm still in vegetation phase though. I'm feeding with Advanced Hydroponics Grow + Bloom + Micro based on chart
Week 6
Leaves. Color · Dark-brown
6y ago
2
Solved
Mini_Boss
HEEEELP
Need urgent help, everyone in rollitup saying it was a PK deficiency but the more bloom i give the worse it gets. Need help fast please before it all dies.
Week 9
Leaves. Dropping off
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
Solved
tangie
Dark purple areas on leaves — genes or environment/feeding problem?
What the heck is this? Is it just purple genes or a stress/deficiency or a combination of multiple factors? I have checked three visual cannabis plant health guides, and did not find a single issue which looks like this. Maybe a combination of 2 factors, but I'm not convinced 😐
Week 9
Leaves. Color · Dark-purple
Leaves. Color · Dark-brown
2y ago
6
6
Solved
meangreenmachine
Spider mites?
What do you think the problem with leafs are during my week 4? I have noticed the there was discoloration on some levels and somewhat looks like someone might be eating from underneath of the leafs.
Week 4
Leaves. Color · Dark-brown
5y ago
1
2
Solved
EddieEd
Need help, Not too sure what going on with the leaves
I have this Neville haze growing. Recently I gave it calmag, and the leaves seems to not like it. Giving out light brown patches, looks almost like rust. Today the serrated tips of the leaves is turning brown. Any idea what seems to be the problem?
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
5y ago
3
1
Solved
Complicate
browning sugar leaves, 9th week of flower
I have some browning sugar leaves, I missed some watering last weekend and think this might be the issue. This should be my last week of flower is this something to worry about?
Week 12
Buds. Other
Leaves. Color · Dark-brown
6y ago
1
1
Solved
dimitrijosvoboditelc
Should I start fertilizing or monitor the pH?
Hi, I'm a beginner, about 10 days after switch, my lower and slightly higher leaves started showing signs of damage. I grow them in a greenhouse in strong sunlight, but I think that they don't get burned, I haven't fertilized them even once. What do you think of this?
Leaves. Color · Dark-brown
4mo ago
-2
3
Solved
Drgreen13
What's this please. I have asked yesterday but this looks different. Please help me.
Leaves. Color · Dark-brown
4y ago
4
5
Solved
Jo3108
Are there any reasons to worry about these spots? And somehow on these two side leaves, the tips have darkened?
Leaves. Edges burnt
Leaves. Color · Dark-brown
4y ago
1
4
Solved
Palatinate_Mate
degenerated plant
Any idea what happened to that plant? Fimmed it and removed one fanleave couple of days ago, the others are fine. Maybe sunburn? I think she'll make it, I'd like to know what happened. check out my diary, all infos should be there. if not, feel free to ask. thanks n cheers
Week 4
Leaves. Color · Dark-brown
Setup. Strains · Photoperiod
Setup. Outdoor
2y ago
3
4
Solved
GrowerNL
My runtz are drooling since the beginning i am growing on coco watering once every 4-5 days on this picture i haven’t given water for 3-4-5 days I have a repost its a update My runoff is 7800 EC pH 5,66 but i gave it 1200 my last watering i am gonna flush
Leaves. Curl down
Leaves. Twisted
Leaves. Color · Dark-brown
6y ago
2
2
Solved
Dgessy
taches à 2 semaines de croissance
I would like to know what the tasks are? Watered with water for now without anything else.
Leaves. Color · Dark-brown
4y ago
4
4
Solved
Rafaelko
Which deficiency could that be?
Help me please to define the deficiency of the Royal Gorilla Automatic. 4 Veg Week. Temperature 25-27 degrees RH 60-75
… Show more
Leaves. Color · Dark-brown
6y ago
1
2
Solved
Maggie_de_Block
Spots on leaves
Anyone know what's causing this? Slight discoloration and rust spots, mainly on older leaves. It's not that bad but quite spread out. did spray with neem oil recently, so is it just burn spots or a nutrient problem?
Week 6
Leaves. Color · Dark-brown
5y ago
2
Solved
N1xon
Why do I have brown/black spots on my OG leaves?
Bare with me please. I purchased "aPotforaPot" kind of on a whim late one night. I planted 3 weeks ago yesterday and have been feeding exclusively water with PH ~5.5. Just received Cal-Mag in the mail and plan to use on the next watering. I'm starting to notice spots on OG leaves
Leaves. Color · Dark-brown
6y ago
1
2
Solved
newtextdocument1
Deficiens or too much huminidy?
Week 2
Leaves. Color · Dark-brown
6y ago
2
1