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Back to Grow Questions
Curling dark leaves
Bretwalda
started grow question 5y ago
Advice for what i think is nitrogen deficiency, have flushed with ph 6.3-6.4 water about 900ml
Solved
Leaves. Curl up
1 like
Hazemaster420
answered grow question 5y ago
She’s fine, let her dry out a bit! Also add some Magnesium sulphate to straighten her out! Cal mag her up! Mainly Magnesium though!
1 like
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Selected By The Grower
GrowersParadise
answered grow question 5y ago
to me looks like plenty of Nitrogen, possibly over watering? how often are you watering?
1 like
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Bretwalda
answered grow question 5y ago
@hazemaster420
, is cal mag and magnesium sulphate same thing or give both?
likes
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Roberts
answered grow question 5y ago
Nitrogen toxicity is issue
2 likes
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Hazemaster420
answered grow question 5y ago
Theirs plenty of nitrogen though, see how the leaves are slightly turning? This is a sign of too much Nitrates/nitrogen!
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Solved
tuanmuda2k21
I'm a First grower and have problem with my plant the leaves turning yellow
I'm a first grower, I have a quick one seed from royalqueen seed, she is 2 weeks old and I have a problem with leaves is turning yellow and crawling in the DWC system. this looks like my plant any advice?
Leaves. Curl up
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4y ago
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bongriplarry
Brown spots, serrated edges curling up - calcium deficiency?
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Leaves. Curl up
Leaves. Color - Dark-brown
5y ago
1
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Solved
LAzerBEAN
Upward leaf curl!
Severe upwards leaf curl. Plants are not up taking any water this week. Slowed down fans. Raised humidity from 50 to 60%. Changed out 6 cob 400 watt light to 200 watt veg blurple light at 36" away. 4 other strains are kept in the same room with the same ferts and are fine.
Week 4
Leaves. Curl up
6y ago
4
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Solved
Verbalist
Getting out of the ideas - VPD, nutrients or deficiency?
I'm getting out of the ideas as the foliar symptoms proceed. Lowered EC down to 1.8 from 2.2, pH in range. VPD is getting problematic as the plants seem to be respirating a lot during the day and it rises tent RH sometimes up to 70% - exhaust duct fan wont keep up. Temps 22-24C
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl up
4y ago
1
Solved
HighZenBerg
Upwards curled leafs with brown spots
The leafs on one plant curl upwards with brown spots. all leafs more or less show these signs. Does anyone know, what it can be? Also the developement of the flowers is slower in comparison with the other 2 plants
Leaves. Curl up
5y ago
5
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Solved
Gazeye
Slight Leaf Edge Upwards Curl?
Showing come slight curling on a couple fingers of a couple fan leaves on 2 plants. Also showing on the new forming leaves at the top. Is this normal? 240W light at 24" above at 30% intensity for 3 weeks. Again, it's only on a couple leaves. Check Grow Journal for more info.
Week 3
Leaves. Curl up
3y ago
5
4
Solved
TechDCo
1. Over Fed (seaweed?) 2. Burnt? Cauliflower.. 3. Calcium Deficiency 4. Hydrogen peroxide 12% Food-grade 30/70 Mix. Personally I think it's the hydrogen peroxide 12% mix, the hydrogen gave one of its atoms to the neuron of the Diatomaceous earth metal clay. With help from heat
Week 9
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Dark-brown
3y ago
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Solved
MrGrow
Foglie cadenti
Good morning growers, the leaves of my wedding cheesecake are curling downwards as if they haven't had water, could it be a nutrient lockout or something else? I'm closing in for help, thank you so much to everyone who will take an interest🙏💚
Week 8
Leaves. Curl up
5y ago
5
4
Solved
Soter
Too much Light or heat? What seems to be the problem?
Too much light/heat? The Amnesia Haze kind of looking a bit sad with the hanging Leafs and curled edges. It is the only lady of 11 that look like this.temp can be up to 30 deg c.
Leaves. Curl up
Leaves. Dropping off
6y ago
1
1
Solved
psamu
Struggling with deficiencies (nutrient lockout?)
Hello everyone, I need your help. I've been growing 2 Green Gelato Auto from RQS but I've had some deficiencies for a while now. It's my second grow and it's the first time that I adjust the pH. They are in soil and I'm feeding them with Biobizz liquid nutes at a pH between 6-7.
Leaves. Curl up
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
6
7
Solved
Paulolo03
The leaves are curled up, it's hot in the room these days, I guess this is the reason. Plants growing fast anyway, humidity between 48%57% but I'm worried because of this leaves problem. Should I ? I do my best to cool down but can I do something else ? Mist the leaves ? Thanks !
Week 2
Leaves. Curl up
7y ago
2
2
Solved
KellosaurusGrows
Is this a heat problem or maybe lights?
I have slight curling on one plant other two seem fine my temps are 81f and my rh is 39 lights were at 18 inches I raised them to 20 just in case they were sorta low on water that plant specifically was lower then others any help would be appreciated
Week 2
Leaves. Curl up
6y ago
2
2
Solved
Goenndalf
Rusty Leaves
3 upper fan leaves have "rusty" brown spots on the upper side. Hard to spot, hard to capture on camera. I also have slight "clawing" on many of the upper leaves. Mg/Ca lockout because of nitrogen toxicity possible? Doesn´t seem to be fungi, as there are no spores to rub off.
Week 8
Leaves. Curl up
Leaves. Color - Dark-brown
Feeding. Deficiences
6y ago
2
2
Solved
Cynthia1710
Is this normal?
It's been awhile since I've had little babies and I don't remember any others doing this. The first two leaves are curled under and it popped out like this.
Leaves. Curl up
5y ago
7
5
Solved
AlexHeadHunter
Curl up.
Who will tell why the tips of the leaves rise up?
Week 6
Leaves. Curl up
5y ago
2
3
Solved
Growdrobe420
Is this a Deficiency?
Could anyone. Please tell me whats going on here is it a potassium deficiency or is the light too strong
Week 4
Leaves. Curl up
Leaves. Color - Yellow
5y ago
1
Solved
willertex
Yellow leaves and burnt tips
Hi Guys, I need your help again please 🙏. https://growdiaries.com/diaries/125447-grow-journal-by-willertex this is Kaley and she seems to have a problem but I can't guess what it is. Can you ? The leaves appear yellow and crispy and lot of tips are burnt. Thx mates !
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
4
2
Solved
bobo66
hplvd again? or just the heat?
maybe i'm paranoid, but i'm getting tired of it. what do you say, do I have a virus or did they just have a problem with the heat?
Leaves. Curl up
3y ago
1
3
Solved
BiteAway
Health problems?
What could this be? PPM: 700 - 800 Temp: 26C (79F) Hum: 50-60%
Week 10
Leaves. Curl up
Leaves. Color - Yellow
4y ago
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Solved
ValleoGrow
Leaves curling upward, is this due to to High humidity or What? The humidity is 80% and i know its to much its cause its been raining alot lately and my tent is outside In a open shaq
Week 2
Leaves. Curl up
8y ago
1