Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Leaves curling upward, is this due to to High humi...
ValleoGrowstarted grow question 7 years ago
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
likes
DudeGrowsWeedanswered grow question 7 years ago
Leaf tips curling up are an indication of LED burn. I’d suggest trying to raise your LED lights.
Similar Grow Questions
Solved
Flicker420
PLEASEE help me find the issues with 2 of my seedlings (3 seeds are from the same autoflower strain and its their day 5 in the soil after germinating withPlant 1 is growing with weird leaf shape and size (there is a mini seedling next to it that i havent touched yet and i dont know what it is!)
Plant 2 grew with 1 totally bent down initial leaf and the new pair of leaves that are curled inside.
As reference plant 3 has been greatLeaves. Curl up
Leaves. Curl down
Setup. Seedling
9 months ago
4
4
Solved
SlamFM
Too Much Light?Top looks yellowish, more so IRL than in the pic and the new growth is kinda taco-ing. Just under 24" from the light, 78F and using Photone the DLI was at ~30. I don't really trust that app but if it's even sorta accurate, 30 might be high with no CO2? says their charts anyways.Leaves. Curl up
Leaves. Color - Yellow
9 months ago
3
Solved
telez00m
Curled leaves and brown spotsPlease help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.8 months ago
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
8 months ago
3
3
Solved
SomersetGrow
Tacoing and leave colourI am worried about the tacoing of the leaves and if the colour difference in the new leaves is normal. not sure if i should keep or take the domes of as one minute im told humidity is to low but now it seems like it is too high, PLEASE HELP :(8 months ago
1
1
Solved
ChrisFirst
What’s happening with my leaves?It’s my first grow, I don’t really have a clue what I’m doing… read online, only have a 100 watt led lamp, 24 Celcius and 40% humidity. I used a testpack from biobizz and sofar my gorilla zkittles auto is looking ok!
But since I’m in flower week 6, I have curling leaves, normal?Leaves. Tips - Burnt
Leaves. Curl up
8 months ago
5
4
Solved
PostMaGrow
Gelbe SpitzeHabe Probleme hauptsächlich an der Spitze und vereinzelt an der Pflanze!
An der Spitze ist es nur am auffälligsten..
Kann es Lichtbrand sein?Leaves. Curl up
Leaves. Color - Yellow
8 months ago
1
1
Solved
HAILEKINGNATTY
Help with my grow!!!First time grower here and this may be hard to tell from the picture but I need some advice. Any idea why my leaves are curling like this? Plant popped out about 5 days ago. Coco coir soil. Am I over watering? Over watering? Or light stress?Leaves. Curl up
8 months ago
4
4
Solved
Calzini1
Curled up leaves on day 7I started a plant ten days ago and from the 7th day some leaves started curling upwards.
I flushed the soil one day before planting the sprout and watered it again on day 9. I use the Fecida 600 lamp 16/8 day/night.
Does someone know what could cause the curling of the leaves?Leaves. Curl up
8 months ago
1
Solved
Calzini1
Tip leaves curling up. What could it be?I have to make the post again BCS I can't answer to the other
Flushed the soil day 0, day 1 planted the small plant.
Day 7 the tips started to curl up.
Watered again at day 8.
Light 16/8 fecida 600 at 30% 38 cm distance.
27.5 C. 50% humidity.
What should I do? First plant for meLeaves. Curl up
8 months ago
1
Solved
Ishkabud
Yellowing cause?What could this yellow and brown spotting be on the uppermost leaves? Also the curling? They are autos, i am giving them half dose of bloom and phospherous nutrients, as well as half dose cal-mag, temperature isnt overly high, watering every 2-3days until runoff.. bit confusedLeaves. Curl up
Leaves. Color - Mottling
8 months ago
1
1
Solved
Calzini1
You can see in the day 15, the tip are still little curling up, I hope I can answer back to the comments with the diary section:)
I red all your suggestions in my questions that I have made before:)
This is the new update of her, should I do something or is everything good ?:)Week 3
Leaves. Curl up
8 months ago
4
3
Solved
Weeweeh
Need helpWatered with fertilizer between day 28/29
After that :
- some Leaf pointing upwards , twisted
- some Leaf pointing down , twisted
- Plants will not stretch , are bushi
- yellow leaves
Photo are from day 28/29/29/29/30 , created my gw today ask me if you need more infosLeaves. Curl up
Leaves. Curl down
Setup. Strain - Autoflowering
9 months ago
6
Solved
DEATR
Week 2: One of the plants still doesn't look good + other beginner questions :)Second week and one of the plants has weird spots + leaves curled.
Not sure what to do. Do I overwater? Is it some kind of disease or deficiency? No idea.
Also, when should I start feeding the plants?
And how much water do I need at this point? 😥9 months ago
6
6
Solved
Galarihno
Plant not growing anymoreYes I made a mistake with bottled nutrients and burned her. She is in nutrient lockdown and im flushing her for a week. But she is not growing anymore.
Leaves are all curled up and brown on tips because of nute burn.
My question is should I leave her or should I cut her?Buds. Not fattening
Leaves. Curl up
9 months ago
2
2
Solved
Kennethy
Burned leaves.Is this heat stress or nutrition relatedLeaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
9 months ago
7
6
