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Back to Grow Questions
Brown blotches on leaves during flowering
snozzy1
started grow question 5y ago
Hi guys, anyone know what this means? Not sure what is causing it
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Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
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Answer
dribbzzy
answered grow question 5y ago
what type of water are you using, tap or distilled?
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Nastyfish
answered grow question 5y ago
Maybe magnesium
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GoldenGromie
answered grow question 5y ago
Looks the same as what i had? I had Nitrogen toxicity. My leaves went shiny in some areas dark green leaves and then when my nitrogen levels went dow i got rusty spots like that.
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Similar Grow Questions
Solved
GarenMaster420
Purple'ish hues on leaves
My leaves are getting some purple'ish hues at the tips and some of the leaves are getting a bit of a more limegreen'ish color. Is this a deficiency/toxicity or just normal aging patterns of the plant?
Week 12
Leaves. Color - Dark-purple
3y ago
3
2
Solved
Hix57
Tache cuivrés sur feuille.
Je me demande si les tâches cuivrées sur les feuilles de ma plante de cannabis et d'autres plantes sont dues à une carence en calcium ou en phosphore/potassium. Les feuilles affectées sont généralement les grandes feuilles, souvent nourricières. Voir agenda. Je vous remercie 🙏🌱
Week 5
Leaves. Color - Dark-brown
2y ago
5
3
Solved
Unpluggy
Deficiency?! Please help with weird Leaf signs :(
This Plant didnt have any problems in This whole run. Sinne 1-2 Weeks she started showing These weird signs and i cant figure out what it is. I thought it could maybe be phosphorus deficiency or something. Got a lot worse in the Last few days! :((
Leaves. Color - Dark-brown
Leaves. Other
2y ago
1
Solved
RaS_Audio
I think my plants are suffering a Phosphorus deficiency due to lockout due to low ph of soil. My first flush only helped for a while. As soon as the medium gets too dry damage resumes. I went to check on them yesterday and the amount of damage they took in 24 hours was pretty bad
Week 6
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Dark-brown
5y ago
3
5
Solved
Weedsthebest
Does this look good haha 😊 There is a Little Brown spots on Done of the leaves not much
Week 7
Leaves. Color - Dark-brown
7y ago
1
1
Solved
THC123
Brown/Gold Stripes?
What is this? I read it’s Mag deficiency, but I put more CaliMag in yesterday during the res change. PH remained the same as well, 6.0. I topped yesterday as well. Any ideas?
Week 4
Leaves. Color - Dark-brown
6y ago
2
3
Solved
ElevatedThinking
Why are there soon many brown spots all of a sudden in WK 7?
I'm entering Wk 7 and the same lady is hurting again. She's been feeding heavy for last few weeks and doing great. So, I gave a light water/microbes dose w/can and Epson. Now I think its potassium or something else entirely... Brown spotting, yellow, crispy? Thoughts?
Week 7
Leaves. Edges burnt
Leaves. Color - Dark-brown
6y ago
3
3
Solved
Greenbean420
Browning on leafs mid flower!?
Hey ive got browning on 2 plants leafs mid flower? Could this be a Calmag deficiency or is it normal? Only been using biobizz grow at 0.5ml/litre and bloom and topmax at 1ml/litre. Thanks!
Leaves. Color - Dark-brown
Other. General questions
Feeding. Deficiences
5y ago
1
2
Solved
EXZELENS
Is this Phosphorous deficiency or overfeeding?
It happened from day to night, the watering with Fish-Mix and Bio-Heaven was made days ago. Otherwise, I haven´t feed her any bloom nutes yet. Peace ✌️
Week 5
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
2
2
Solved
beetyjooce
Fertilizer burn or something else?
Hey fam. Plant seemed fine a few days ago besides a mag deficiency. Decided to foliar spray cal mag at half strength a few times. Now there are brown patches and leaves/stems are curling down like they’ve been overwatered. Too much cal mag? Burn? Something else? Thanks!
Leaves. Curl down
Leaves. Color - Dark-brown
3y ago
2
3
Solved
romi27
Brown spots on autos. Halfway thru week 5. Also, stretching rlly bad, under same conditions
Brown spots? It's on the plant on the left. Both the same strain, and autos, but I topped the one on the left. Its been growing too quickly tbh and just wanted to try to have an even canopy. Been feeding them fox farms veg nutes. About to switch. Dose her with cal mag maybe?
Week 4
Leaves. Color - Dark-brown
Plant. Too tall
Plant. Spaces between nodes
4y ago
2
2
Solved
OrionGrowgul
Was ist das?
Meine Gorilla Skittlez (siehe Tagebuch) wird relativ hell und bekommt komische Flecken. Ich gieße abwechselnd mit Hesi Bloom (2,5ml/L) , 1ml/L Calmag und nur Calmag 1ml/L Dachte die Flecken kommen von zu wenig Calcium Magnesium. Jetzt steigt aber mein PH Wert von 6,8 auf 7,4.
Leaves. Color - Dark-brown
6mo ago
2
4
Solved
Terra_Farma
Brown Patches on Older Leaves
Slight yellowing and brown mottled patches. Only on one of the two plants and they’ve been treated and fed exactly the same. On some older fan leaves, no signs of anything on new growth. Anything to worry about at this stage? Maybe just a sensitive pheno? Any advice appreciated.
Week 7
Leaves. Color - Dark-brown
5y ago
3
3
Solved
burnoutdev
Light green patches on many leaves
Hey, few days before I noticed light green patches on leaves and now it's visible on more leaves. I noticed it only on large leaves now. What can be a cause of this? Also, I underwatered plant these days and maybe this can be a cause?
Leaves. Color - Dark-brown
Leaves. Other
6y ago
2
2
Solved
420keef
My leafs turn yellow very fast sometimes with dark almost black spots on them is that normal? And what can i do about it?
Week 11
Leaves. Color - Dark-brown
8y ago
3
3
Solved
LeCuack
No se porque se torno amarilla ec esta normal y ph también. Luz se subio para prevenir quema.
Week 8
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
2
Solved
JoeyJoeGrowJoe
leaves turning brown in middle. I dont know why, if anyone could help me out
Week 3
Leaves. Color - Dark-brown
5y ago
1
3
Solved
rocketp
what happen with my leaf
anyone help me what happen with my baby and help me nutrition for purple haze
Leaves. Color - Dark-purple
4y ago
1
Solved
CaaosPLAGRON
Help help help
What's the problem with the plant .... ????? How to solve ..... ????? Garzie 😉
Week 10
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Paradox_1ste1
Hey guys ive planted these Ayahuasca Purple 4 days ago on 22l pots (small ones) and i dont like the way they look at all . The leaves are not as they soupossed to be.Stardog leaves aswell are starting to root . Can anyone help me with any tip please.
Leaves. Color - Dark-brown
Plant. Stem - Weak
4y ago
4