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Back to Grow Questions
Curling dark leaves
Bretwalda
started grow question 4y ago
Advice for what i think is nitrogen deficiency, have flushed with ph 6.3-6.4 water about 900ml
Solved
Leaves. Curl up
likes
Hazemaster420
answered grow question 4y 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 4y 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 4y ago
@hazemaster420
, is cal mag and magnesium sulphate same thing or give both?
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Roberts
answered grow question 4y ago
Nitrogen toxicity is issue
2 likes
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Hazemaster420
answered grow question 4y ago
Theirs plenty of nitrogen though, see how the leaves are slightly turning? This is a sign of too much Nitrates/nitrogen!
1 like
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Similar Grow Questions
Solved
kking6321
Nute burn?
I have one plant that's browning and tips are starting to point up. I'm thinking this is due to ffof soil being too hot for this one the other 2 dont seem to have problems, though another slowed down and is getting a little twisted. Anything I should do besides continuing ph h20?
Leaves. Tips - Burnt
Leaves. Curl up
5y ago
2
2
Solved
Baddawg0509
How much and how often should I be watering my plants growing in a soil-less mix and 3 gallon pot? I have seen many conflicting arguments. So far I have been giving them 1 Liter every 3 days.
Week 2
Leaves. Curl up
7y ago
2
2
Solved
czlok
Why are leaves curled?
Im a little bit freaking out about those curled leaves, don't want to fuck up Another grow. I figured out on my own that i have small magnesium defficency added 0.1ml/l calmag. The smallest plant literally break leaves because of curling, how can I save this one?
Leaves. Curl up
4y ago
1
2
Solved
hellomynameis
What's wrong here?
Some leaves turn from green to light green to yelleow almost white. Begining from the edges to the core. Veins turn light green too. Rusty spots appear and leave edges and tip curl upwards. In the last state leaves get brittle and drop. Thanks in Advance.
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Pale
4y ago
1
5
Solved
Neo_007
Whats wrong with this plant?
Was water logged, transplanted into 95% dry soil to correct, soil with nutes in it. I see: Heat stress. LED light 2.2 ' away, raised the light. ( curling up ) Late stage P deficiency... green veins. Can't flush, was just waterlogged, what to do? Water a bit with RO?
Week 6
Leaves. Curl up
Leaves. Veins - stay green
5y ago
1
1
Solved
BavarianBarbarian
Week 8 (4 weeks into flowering) - Possible Nitrogen / Cal-Mag issue?
Plants show signs of what i assume to be a deficiency. Stopped feeding nitrogen Week 7 according to schedule. Symptoms are not on every leaf but some the upper foliage. Yellowing, burnt tips and rusty spots. My guess is lack of Cal-Mag & Nitrogen. Is my guess correct?
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
1y ago
3
3
Solved
HighZenBerg
Leafs curled up
Hi there, I need some advice. It’s day 29 an the leafs curled up. What could it be ? I didn’t water for 48 hours, light ist 60 cm away, temperature is 28C I started to give 1,5 ml of bio grow. Thanks in advance
Week 3
Leaves. Curl up
4y ago
3
6
Solved
Dillsnills
Deficiency or nute excess I have trouble telling the difference?
Is this a deficiency or an excess of nutes my ppm run off is 1030 after a nute feeding the feeding before was 883 ppm, lemon autoseedsmanwk5flowering,I jus got cal mag was going to give it a 1/4 dose 6.6ph, advice input greatly appreciated,telling deficiency or excess is mytroubl
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
1
Solved
Leonard_Lunte
Leaves turning yellow from the bottom up
My older plants leaves are turning yellow from the bottom up. Its probably a nitrogen deficiency I think, I read that its common for plants in late flower but this one just shot its first pistils. What would be the smartest thing to do to combat this? Thx Its only on 4 leaves rn
Week 4
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
4
3
Solved
ggBrox
Any ideas on my lower leaves cupping? I'm thinking a root issue from overwatering. I last watered 6/11 and this started showing on 6/13 and has progressed. Soil is still moist and fungus gnats popped out of nowhere this week as well. Have SNS 203 for next watering
Week 3
Leaves. Curl up
6y ago
1
1
Solved
OrganicAutomatic
Tips curling up
I noticed the tips beginning to curl up. I did gave her bio grow in the last two weeks 0.5ml/lt ph 6.5 almost every watering i used bio grow. I have another 8 plants of different breeds and none of them showing anything wrong. I wander if its the nutrients or perhaps the light?
Week 6
Leaves. Curl up
3y ago
3
2
Solved
bongriplarry
Brown spots, serrated edges curling up - calcium deficiency?
This is a Barney's Critical Kush auto that's at about day 57. She's into flowering, but I've just started to notice some brown spots on leaves with some slight tip browning, and the serrated edges on the leaf are curling up. Is this just a straight calcium deficiency?
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
1
3
Solved
boomgt
What happen with my ladies?
Hi, Growers After switching to Bloom nutrients. I have concerns about the leaves, They have a rusty spot, dry, and fold up. Can you guys advise me. How to fix it and. what is the reason why they have this issue - Aeroponic system pH 6.3sd ec 1.6 rh 60-65% temp 26-28
Week 8
Leaves. Tips - Burnt
Leaves. Curl up
3y ago
2
2
Solved
growbola24
Hojas en formas de canoa
Tengo hojas en formas de canoa en la 3ra semana, solo las hojas bajas, no estoy fertlizando aún. Tengo luz led asi que no es calor. Sospecho algo relacionado con la humedad o el ph. Alguna experiencia?
Leaves. Curl up
5y ago
1
4
Solved
kaiabel
Leaves are looking a bit strange.
Leaves looking sick hope its not root rot, i changed the light but only from 25% q5 to 50% evo 3 maybe it was a bit too close. I tried closer to prevent them from growing more in hight.
Week 11
Leaves. Curl up
3y ago
6
2
Solved
dubkream
I'm having an issue with two of my plants, the leaves are curling upward right at the base of the leaf. My humidity is right at 57-60%, heat goes fro 76-81 during the day, watering once a day. Does anyone know what might be causing this? Im on day 10, by the way.
Week 2
Leaves. Curl up
7y ago
7
5
Solved
KuaerSchlaeger
Mangel? Überdosierung? Windbrand?
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Leaves. Curl up
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18d ago
1
3
Solved
Frits
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Leaves. Curl up
4mo ago
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Blubbiblubb
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A few leaves aren’t looking too happy. What’s that? Deficiency’s, too much light, too many nutrients? It’s only a few leaves with that problems. What should I do, what would you do? Thank you!
Leaves. Edges burnt
Leaves. Curl up
Leaves. Dropping off
1y ago
1
2
Solved
Gr33nFi3ld
Hey guys. Leaves not curling upwards as such but I'm getting some leaf tips that seem to be reaching upwards slightly. Does this mean I need to up her cal and mag intake? I read somewhere if the leaf tips are starting to "pray" towards the light it could be a cal/mag def?
Week 8
Leaves. Curl up
6y ago
1
1