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Back to Grow Questions
Wrinkly and twisting leaves with ?cal? Def?
growpro44
started grow question 2y ago
Could this be too less air circulation and too hot temps? It seems i have it everytime i put them in flower and put on the big spiderfarmer 730 watt
Solved
Leaves. Curl up
likes
Inganjawetrust
answered grow question 2y ago
Looks like heat stress ,if your light has a dimmer try turning it down some. If no dimmer then raise the light if possible.
1 like
Complain
Selected By The Grower
Scrubbyjimbob
answered grow question 2y ago
I would say your instincts are leading you in the right direction.
1 like
Complain
Similar Grow Questions
Solved
Harold_Halibut
Super Urgent, first time grower, batch might go to heaven - plants look beaten up, I suspect light stress or overwatering
5 plants, 4’x4’x6.5′ grow tent, 600 watt HPS lamp (it is hanging 70 cm above the highest canopy plant), did topping on 2 of them, swithing to fowering very soon, average humidity is 30%-50% (can't afford a humidifier now, so I use natural methods) for now), 2 static fans
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Curl down
7d ago
2
2
Solved
Chewbacca
Hello, So my WW look almost ready for harvest but she is still Young (end week 8). The temperatuur start to cool down here. Do I best wait to harvest her (around week 12) or do I follow my instinct and end her in a week or two? Thanks grow friends!
Week 8
Leaves. Curl up
7y ago
1
1
Solved
pigywigyswag
Sick plant, nutrient toxicity?
Few leaves on my plant are beginning to burn, plant was always at least 18” away from my viparspectra xs2000 light set at 50% brightness, so I doubt it’s light burn. Temps are always 73-78 inside the grow tent, this strain apple fritter is sensitive to nutes, happy frog too hot?
Leaves. Curl up
3y ago
3
Solved
superskunkyfunk
Yellow crispy burn spot leaves
Does anyone know what could be causing the curling upwards on the leaves and burn spots, Yellowing as well? They're 7 weeks into flower and have been fed fox farms nutrients each other watering the whole grow until last week. The past week I have used plain water. Ph&PPM fine.
Week 11
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
3
4
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
4y ago
7
5
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.
Week 8
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
2
Solved
918Grow
What’s causing leaves to curl up and fold?
Ethos Pluto Cut Auto are showing upward curling on leave claw tips? Seeded in AutoPots 6.6 gal. With Roots Organics 707 top with 6” core of 707, Then 50/50 mix with Sohum living soil to straight Sohum in bottom half. Temps 77 high and 68 low. With oscillating fan.
Week 3
Leaves. Curl up
5y ago
1
Solved
Ontario
Any idea why the leaves are curling inwards like they are in the last two photos? Is this because it's too hot, or am I giving it too much water? Should my fan be blowing on the plant itself, or the 150-watt light? Thanks.
Week 2
Leaves. Curl up
8y ago
16
8
Solved
seyske
since this week the lower leafs from my plant started changing color. they also began to get brown spots en curl up. anyone know what this could be an what i can do about it?
Week 11
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
4
Solved
Sti_Cazz
Nute light burn
Okay I think I learned a lesson, 1/4 nutes next time (or nothing at all) seeing I'm seriously nute burning my plants, also one of the girls is about 20 cm from my light... Anything I can do to maybe calm down the situation? Flush? Never tried to and wasn't planning on doing it...
Leaves. Tips - Burnt
Leaves. Curl up
5y ago
2
2
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
2y ago
8
7
Solved
cropduster
Problems in second week of flower, any ideas? Yellowing with some brown spots and purple stems.
First signs of issues? Medium - Pro mix hp Nutrients Gaia Green (75/25 mix of 444 and 284 in base) Top dressed week 4 with 3 tbs of 284 and 3 tbs worm castings two teas - first veg tea second bloom tea 3/4 to 1L every two days of well water ph 6.5 ppm 213 Purple stems from stalk
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Plant. Stem - Red or purple
5y ago
2
3
Solved
Flavaz
Runtz muffin curling leaf update
I posted a question yesterday regarding leaves curling up on my 10 day runtz muffin, presumed heat damage but after a feed and 24 hrs she's come back from it, recently upped the light to 400w, do you think they just take a bit of time to adjust to it? They all seem good now
Leaves. Curl up
5y ago
2
2
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
MG2009
Please look at pic of leaf tips curling, on older large fan leaves, any ideas on what is going on?Thanks for your guidance
Week 6
Leaves. Curl up
7y ago
3
2
Solved
mushimushi
why the 2 little plant are like that?
i did something wrong or its only genetic ? for the rest its all going well?
Leaves. Curl up
Plant. Too short
3y ago
1
2
Solved
Royalgorillaxx
Whats wrong???
What's wrong???
Leaves. Curl up
Leaves. Color - Dark-brown
Plant. Other
5y ago
3
Solved
ChuckyBB
Leaves Curling
i notice today a couple of my leave are curling up and an sure there shrinking, is this normal guys.. Thanks
Leaves. Curl up
5y ago
1
1
Solved
Mr_Wilson
Wavey leaves
My leaves are a little wavey is that normal?? What can I do to fix that problem?
Week 1
Leaves. Curl up
5y ago
2
3
Solved
Spiritual_Herb
I'm entering week 7, what's happening?
I'm entering week 7 from germination. I'm using a soil for herbs/lawns (pH 8) as an amendment—not ideal for cannabis. I'm testing it, but leaves look like this. I fertilize and already flushed. Using 1ml grow + 1.6ml bloom Biobizz in 500ml water (pot is 3.2L).
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Pale
6mo ago
1
4