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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
TheGreenQueen420
Nutrient deficiency? Any advice cheers?
Hi can anyone advise on this? Brown spots on fan leaves that has spread to the tip today. I have been going easy on nutes as I use all mix and root juice. I am starting grow next water and bloom next week. Ph to 6.3 Night temp 21 and day temp 26-29 Watering wet dry (not over)
Week 3
Leaves. Color - Dark-brown
6y ago
1
1
Solved
GoldenWeedGrower
leafs with brown spots and olders become yellow and curled
I'm trying to figure out what is the problem with the growing of my plant. The upper leafs are quite normal, even if they tend to bend downwards. The old leafs start with brown spots and then they become yellow and curled on the peaks. Please help me to understand what's going on
Week 3
Leaves. Color - Dark-brown
Plant. Wilting
5y ago
1
Solved
HAPPY91
Leaf Help Please
Whats with the discolor and clawing?
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
7
5
Solved
swedengrow
Brown stripes/lines
Hey! Brown stripes/lines has appeared on my leaves, the plant is still small. Why has it happend and what am i supposed to do? And why are two of the leaves curling?
Leaves. Color - Dark-brown
5y ago
1
4
Solved
Soulgrow_x
What causes this
What is this ? Happened over night
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
3y ago
1
3
Solved
dillande3
Dry/Rot look on new LH day 52 from seed, Placing outdoor for week or 2 until I get proper Tent LED's
Day 35 Veg LH, issues, with lower branches, some of the New Toppings and Leaves looking dry/rot maybe over watering which i have no idea, it was under white CFL Bulb's and was inside 2x2 cupboard (MDF) and no control of RH, for 1-2 weeks, Going to put it outdoor for a week
Week 8
Leaves. Dropping off
Leaves. Color - Dark-brown
Leaves. Other
3y ago
1
2
Solved
WorldPeas
Rust Spots
Rust spots on fan leaves. Suspected nutrient burn as I let the medium get too dry. Though it would be helpful to get others opinion.
Week 7
Leaves. Curl down
Leaves. Color - Dark-brown
3y ago
1
4
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
6y ago
3
3
Solved
JKwonTheChef
Browning between leaf veins!
After my low humidity problem two days ago, she seems unhappy and the growth has basically stopped. I realize it should be slowing down at this third week but these brown, dry-looking areas are showing up between some of the leaves, the ones in the center being the worst. Thanks!
Week 10
Leaves. Color - Dark-brown
6y ago
2
2
Solved
Herbyfirby
Brown spots on some newer but not new
I’m 6wks into gorilla cookies and some of the leaves have developed brown spots only on the ones close to the top of new growth
Leaves. Color - Dark-brown
2y ago
1
1
Solved
Dylannthoo
Is 8 oz of water about right for 3 weeks old plants? Also thinking about LST, is it a good time to start that now? Also is buying nutrients worth it when it comes to harvest? Or is it more dependents on the power of the light ? Thank you for any advice 💯🙏🏼
Week 3
Leaves. Color - Dark-brown
6y ago
3
3
Solved
Terp_Djiny
Nutrients?
Could anybody tell me what Kind of nutrient she need? Or whats her Problem?
Week 19
Leaves. Color - Dark-brown
6y ago
2
1
Solved
Coconut_kiss
Rusting leaves since week 9
Affected leaves on top. Rusting leaves,some have purple stems,week 10 check out diary for more info also some bottom leaves have been dying off
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
2
Solved
thebiglebowski
Bonjour à tous pouvais vous me confirmez que cela vient d'un trop d'engrais ?
Leaves. Color - Dark-brown
4y ago
3
4
Solved
Autogrowing
Do these look healthy? Thoughts? I'm new to hydro/growing
I have autos growing in a dwc system being fed half the regular amount of hydroguard, calmag, and grow/bloom. 1 plant is a week younger. The dark green plant looks like its leaves are clawing and has big brown spots on the leaves. The other has some brown dots and little yellow.
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
3
Solved
Otherland_Wildspice
Orange Leaves? Is This Normal?
I noticed some orange/red colors on the leaves is this normal? What caused it?
Leaves. Color - Red or pink
Leaves. Color - Dark-brown
5y ago
1
1
Solved
penthausgrow
Help diagnose hydroponic plants! Too much light/heat? Nutrient issue?
The plant's leaves on the right are wilting and drying out, while the leaves on the left are spiking. Just did a nutrient/water change but it didn't help, and it looks like growth is being stunted on the right plant. Humidity has been around 45-55 rh and temp 70-80F
Leaves. Curl up
Leaves. Color - Dark-brown
Plant. Wilting
6y ago
4
Solved
HomeGrown33
Brown Spots on Leaves
I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!
Leaves. Color - Dark-brown
Leaves. Color - Mottling
2y ago
5
3
Solved
LEAFJE
Brown spot and crispy ends
Dear Growmies, My leaves, mostly the top fan leaves haves started to get brown and yellow spots. And even turn crispy to the point I can snap of the tips. I already increased Calmag from 0,5ML/Liter tot 0,75ml. I have been watering between Ph of 6,2 and 6,2. Any ideas ?
Week 7
Leaves. Tips - Die
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
4y ago
3
4
Solved
Green_Dream
Brown dark spots on fan leaf
Any clue what this is? It only appeared on 1 of the plants and only on 1 of the fan leaves. The brown color has kind of a metallic shine to it. My guess is that it’s a Cal. def. I also suspect it might be a Phosphorus def. as the plants turned dark green the last few days.
Week 5
Leaves. Color - Dark-brown
6y ago
2
2