The Grow Awards 2026 🏆 
Any Idea's on the issue?
GreenGrocerN4started grow question 5y ago
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
Solved
Leaves. Color - Dark-brown
likes
rhodes68answered grow question 5y ago
Could be a nuet spill organics have a way of scarring leaves otherwise dont see anything to do at this point
Similar Grow Questions
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
ThePotFactory
Ive got a few dots showing up on one of my plants. Could this be because of the cold??Week 2
Leaves. Color - Dark-brown
8y ago
5
6
Solved
ChuckyK
What is this brown spot?What is this brown spot? 18” from light. Just fed about 10 hours ago with dr.Earth 1-1-1 liquid solution watered in with 1/4 gallon of water. It is the only spot on whole plant. I know the temps are high. Wondering if it could be something else.Week 4
Leaves. Color - Dark-brown
5y ago
3
4
Solved
Paradox_1ste1
Ayahuasca leaves are turning brown in an rust color . Most of the plants are healthy but some of them are starting to curl and get this brown color. Can anyone help me what is going on . ( im using 600w lumii lights ) would appriciate it if anyone gives me a hint 💚Leaves. Edges burnt
Leaves. Color - Dark-brown
4y ago
2
2
Solved
Coconut_kiss
Discoloration and brown tipsNutrient burn or something else?Leaves. Color - Dark-brown
6y ago
1
4
Solved
SmylinPupil
Brown yellow leaves?Can anyone help me? I had this issue with my last early Miss and thought it was a cal mag deficiency. I tried to adjust it last time during flower but it didn’t help. I really only notice it on one of them so far but I would like to fix the problem sooner than later.6y ago
1
2
Solved
Maraviglosos
Bruising or nute problem?I do not have enough characters here, please check diary for details. Some tops are showing some problems. The thing is, only a few and it does not seem related to light distance. My first thoughts is this is bruising, but I would like some more expert opinions.5y ago
3
Solved
blasterw32
leaves dry and curling upGelato canopy leaves continue to dry and canoeing up. I've backed off the lights, changed the air circulation, and gave only water in the last week, but the situation is just getting worse. Canopy buds are not growing and trichomes production is much higher in the lower branches5y ago
3
2
Solved
sbgrow
Yellow/Brown/Spotted/Crispy Lower LeavesWhat is wrong here? Gave an extra dose of nutes but the problem only seems to be getting worse and spreading up the plant. Definitely effecting the bottom leaves more. Others said to just increase N-P-K ration, but this seems like something specific.4y ago
3
Solved
burnerac
I’m seeing brown on the lower leaves. They also appear particularly shiny like a magnolia leaf. Is this too much iron or magnesium?Week 7
Leaves. Color - Dark-brown
6y ago
3
3
Solved
Wexlo
Spots on leavesStrain-dancehall
6 weeks old
No Nutrients
Ph 6.2-6.4
3 liters every other day
New to growing. Out of 3 plants 2 are starting to get spots on leaves near the top. All 3 have discolored leaves at the bottom. Pics are numbered. If anymore info needed just askLeaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
5
Solved
OrganicRepresent
Yellowing leavesNot sure if is issue yellowing leaves on my pot 3.
Same strain pot 1 got slowly bottom leaves yellowing, pot 2 have nothing yellowing yet just pot 3 accelerate with it. Pot 3 veg with indica flower as sativa crazy genetics. What can be issue? Its end of week6 flower.5y ago
1
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
toxicswine462
Calcium and Nitrogen deficiency?Hey guys, I noticed that on a few leaves have start appearing some rust spot. My guess is a calcium deficiency. What do you think?
Also, there's a cola(the one marked in the pic) which has a slightly more light green leaves, nitrogen deficiency?Leaves. Tips - Burnt
Leaves. Color - Pale
Leaves. Color - Dark-brown
4y ago
3
4
Solved
Ap0_DrX
I have this symptom, a pattern of rust spots happening on new leaves, I have checked medium PH, which is around 7.5. I think it is Boron Deficiency caused by The medium PH not being approximately 6.5.
I need more suggestions, What do you guys think?Week 10
Leaves. Color - Dark-brown
3y ago
1
2
Solved
HAPPYWEEDS
Dark dots in leaves. Lamp burns?I saw this dark dots in leaves but only she has it. She was exactly under spider-farmer sf1000 at 30 cm. Now I moved to other softer light at 40 cm. What do you think? Lamp burns? They're dry and curl up. Some images are edited for better appreciation but you have also originals.Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
4
3