Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Heat stress?
willisknows
started grow question 5y ago
Does this look like heat stress? It’s been in the 90’s all week.
Solved
Leaves. Curl up
likes
Aquemini
answered grow question 5y ago
Looks like it has a little heat stress, but still very healthy looking for being in high heat all week.
1 like
Complain
Selected By The Grower
Roberts
answered grow question 5y ago
Yes light heat stress but nothing to worry about. Mother nature has always taken care of herself outside.
1 like
Complain
Similar Grow Questions
Solved
user5698
Leaves turning yellow and brown with sligh curl up
One of the lower leaves is slowy turning yellow and brown, i tried to fix the issue with a light dose of fertilizer but it did not help (affected area still spreading). I am growing in biobizz light mix and i'm at the end of week 2. does anybody know what is happening?
Leaves. Curl up
Leaves. Color - Yellow
2y ago
2
2
Solved
Cezar
twisted and curved leaves
Twisted and curved leaves for three days I noticed that the leaves on certain plants they begin to deform are on day 12. the first 7 days I watered 100 milliliters of water in 24 hours now I wet 100 milliliters in 48 hours .ph 6.0 6.1 Light, 19-6 lumatek 630 cmh Can you help me
Leaves. Curl up
5y ago
4
4
Solved
Greentee_420
Was könnten die kleinen haben ? Help
Hallo weiß einer was meine kleinen haben könnten ? Die Blätter gehen total in die Höhe die wirken sehr angespannt
Leaves. Curl up
3y ago
1
Solved
slixmeister
Hanging/Folding Leafes
Hi all, Im still worried about the Hanging and folding leafes from one of my plants. The other one is completly fine but this one doesnt look to happy. I have stopped watering them for some days and let the soil dry out almost completly. Since i was worried about overwatering.
Leaves. Curl up
Leaves. Dropping off
1y ago
1
3
Solved
TooMedicatedToThinkOfOne
Minor Leaf Curling? Over Water or Over React?
Well my plant has been doing great and very much still is to be fair. But ive noticed some curling starting on my leaves. Is this due to over watering possibly or is it too hot in my grow area or am I just over reacting? Thank in advance!
Leaves. Curl up
5y ago
2
Solved
sweetkaya
Calcium Deficiency?
Some days ago i noticed what i think is a Calcium deficiency because i cut the CalMagXtra on day 14 when i started giving the base nutes. So I re-added it in the mix and adjusting the pH at6.0 but the plant is not recovering andnow even the 2°plant is showing that signs. Help pls
Week 3
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
Solved
FullFuzzy
Upward curling of leaves
One of my plants has started to have it's lower leaves curl upwards & started to go a yellow tint that's harder to see in my images. Yellow tint is starting higher up as well I think, but the curling is only on the low leaves. Is it nutrient defficiency, heat stress, wind stress?
Week 4
Leaves. Curl up
Leaves. Color - Yellow
6y ago
1
2
Solved
StoneyBird420
New growth curling
Hey gromies back with a question. So background. Night Queen Auto in preflower, 5weeks old. Nutes are skunkwerksrx all in one 10ml/gal less than full flowering dose. Solution ph 5.6 feeding 1ltr approximately daily nutes given every other. What is this and what to do?? HELP
Week 5
Leaves. Curl up
Leaves. Twisted
5y ago
1
3
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
Slaccio
1st Grow Autoflower Problems
I’m having problems with my autos. They are Assorted from Budha, 2nd week as plants. They both look stressed . One looks shiny and with light stress and the other haves other sympthoms. I’m using HPS 250 and All Mix from BioBizz, no nuts. Nitrogen? Light? Water? Help!
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Pale
6y ago
1
2
Solved
rockbo47
Can anyone tell we what the issue is here please?
Amnesia auto, coco/perlite mix, 5 gallon fabric pot, 18-6 schedule, sf1000, Day 13, avg temp of 25°C, avg RH of 60%. schedule - https://www.growweedeasy.com/wp-content/uploads/2014/12/coco-coir-flora-series-schedule.pdf Temps exceeded 30°C for 5hrs today & was 29° yesterday
Week 2
Leaves. Curl up
Leaves. Color - Pale
Leaves. Color - Mottling
6y ago
1
1
Solved
Jake13255
Leaf discoloration and curling
I’m not sure what’s wrong but all my other plants are fine. It’s in pearlite and peat moss and I’ve been watering with ph balanced water. I did use a very little bit of half strength dyna grow but I only did a little squirt.
Week 3
Leaves. Curl up
Leaves. Color - Yellow
6y ago
3
3
Solved
Igrowneil
Okay my candys I've noticed are drinking a lot more water and u expected the 3 candys pots have dried out thoe I have watered with run off just to make sure I can see how much there actually taking per 24 hours ... leaves have curled upwards with very minor roll . Will they be ok
Week 6
Leaves. Curl up
6y ago
2
2
Solved
EXZELENS
Is this Phosphorous deficiency or overfeeding?
It happened from day to night, the watering with Fish-Mix and Bio-Heaven was made days ago. Otherwise, I haven´t feed her any bloom nutes yet. Peace ✌️
Week 5
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
6y ago
2
2
Solved
hinterhofgrower
Leaf curling up
Should I be worried about the leaf curling up a little? What do you think?
Week 2
Leaves. Curl up
2y ago
1
5
Solved
tiasmaaa
Magnesium Deficiency ? How can I fix it ?
got a little deficiency (maybe burned? but I think not). I'm pretty sure it's magnesium's deficiency, it happens after a flushing. I added 2 times the last 2 weeks a little bit of CalMag (BioBizz, but ive bought it 2 years ago, maybe it doesn't work well idk).
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
5
5
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
8y ago
1
1
Solved
safooo
if some one could please advice about is that curling or will just be fine
Week 2
Leaves. Curl up
2y ago
8
5
Solved
budda420
Whats happening?
Can anybody help me please was wondering what this is on my leaves its mainly on the tip on this leaf, ive looked all over and cant find anything theres also a couple of tiny black dots aslo one of my other plants leaves are curling and browning any help would be much appreciated
Leaves. Curl up
Leaves. Color - Pale
5y ago
1
2
Solved
Mccolin75
Leaves folding in
Was wondering why new leaves on my new clone are folding? I’m not very experienced in growing, and I’m just getting it started so I can move it outdoors in the spring. I have a 300W pink grow light (idk any specs or even brand) it’s on 18/6 hour light cycle
Leaves. Curl up
4y ago
1
3