The Grow Awards 2026 🏆 
Leaves
ChitownCannaChicaanswered grow question 5y ago
That just looks like a trauma of some sort. Like a water spot that got too hot, or a bend... plant looks healthy otherwise.
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daymzor
Yellow spots, (Leaf Septoria)?Since this weekend, my new run is having problems..
yellow spots in the greenhouse and burning up outside..
There is atm a heatwave over the benelux, this the problem or realy Leaf Septoria?
All ear and eager for help, thanks again!Week 10
Leaves. Other
6y ago
2
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dzirofy
Slow growth, terrible appearanceA week after seeding. Hawaiian Snow (GHS), planted it in a coco coir (washed, buffered with calmag 500 ppm), watered with T.A FloraCoco until drainage 400ppm. Lighting 60W, up to lamp 40cm. Temperature during the day is 32C at night 24C. I just want to finish this :(Leaves. Other
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2y ago
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PAPH_Grow
browning leavesAnybody have any idea on the cause of my leaves getting brown spots and curling at the tips? It's really just on the big mature leaves and leaves near the buds. Any smaller and younger leaves are still fine. Maybe a nutrient issue? Or is it just that its close to harvest time?5y ago
1
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BobrMarley
Calcium deficiency or PH problem?Is this a calcium deficiency ? given the soil mixtures (recipes in germ. week) unlikely.
since they only get tap water, i checked the values
Ca2+ 65.6 mg/l
Mg2+ 17.3mg/l
that's an 3.8:1 ratio.
PH is 7.6, I never checked that tbh.
doesn't the soil compensate for that?Week 6
Leaves. Other
1y ago
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DoxPuppy
Brown spots on healthy leavesBrown spots developped on seemingly healthy leaves during late vegetative state. She's at ~40 days old. I haven't changed her feeding habit. Soil pH is between 6 and 6.5. Water pH always making sure it is 6.5 before watering. Could it be Cal-Mag deficiency?Leaves. Other
2y ago
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Sup3rNov4
Leaves breaking down!Help i may have to remove her from the tent. she has grown no branches, then i awoke a few days ago to on leaf looked like i dropped acid in it and now this morning i found a few leaves had twisted under and when put back the inside cell structure is mush like its broken downWeek 6
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3y ago
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Tiz_aka92
Leaf Issue!Could someone help me understand whether there is a problem a deficit or an excess.Leaves. Wilting
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2y ago
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24Gamez
Need a fungicide quick!!What's the best fungicide to use if any during flower for stubborn fungus?Leaves. Other
4y ago
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jeannoTapin
Leaves pointing upHello,
One plant has most of its leaves pointing up. Plant look healthy otherwise. PPFD is around 650/700 and light pattern is 20/4
What could be the root cause? I read mixed answers. Some say healthy plants and or strain specific other that light stress.
Regards,
JeannoWeek 6
Leaves. Other
1y ago
11
10
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Paulolo03
All my plants are infested of thrips ! I didn't notice before, beginner mistake ! I can see the thrips under the leaves, even close to the buds. I'm about to harvest 1 plant very soon and the others in the coming weeks, can I harvest anyway or I have to get rid of them before ?Week 9
Leaves. Other
6y ago
1
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RecreationalRoots
What could be eating my leaves?My outdoor Gorilla Glue Auto is getting eaten by something. Any thoughts on what this could be? I have not seen any pests while doing checks and it is only this plant (I have two more outdoors in same are with this one). Part of leaf and even entire fingers have been eaten.Leaves. Other
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Setup. Outdoor
5y ago
3
6
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jjTomtom
Should i remove leaves beneath the top?Hello, me again with another question.
So I just topped the plant, now i was wondering if i should remove the growth beneath the upper set of leaves.
I've seen videos explaining why you should do it and why you shouldn't.
Whats your experience?
Appreciate all the help so far!Week 2
Leaves. Other
9mo ago
2
3
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idkman1337
Any idea what that could be?It is not powdery, more like in the leafLeaves. Other
4y ago
1
5
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CTCan
Touching buds while dryingDoes touching the buds at all while they’re drying reduce potency? I’ve been checking them daily and touch the odd one from time to time. Should I just leave them alone and focus on snapping a stem to determine if they’re dry enough?Week 11
Leaves. Other
5y ago
3
3
Solved
Fre_84
Hi all growers, today I did the usual check and after 48 days, I noticed some problems. As you can see from the photos, some leaves have these defects. What could it be? The rest of the plant seems to me to be fine ... what do you think? Thanks to those who will answer me.Week 6
Leaves. Other
5y ago
3
3