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Back to Grow Questions
Heat stress?
willisknows
started grow question 4y 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 4y 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 4y ago
Yes light heat stress but nothing to worry about. Mother nature has always taken care of herself outside.
1 like
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Similar Grow Questions
Solved
JKT48
Dear experts, could you help me ascertain whether the 4th and 5th picture on my Week4 diary is really heat stress? The only reason I think that is because of that slight cupping/curling of the leaf edges. Might there be other problems that could cause this?
Week 4
Leaves. Curl up
6y ago
1
1
Solved
Saltoa
Autoflower leaf problem
"My autoflower plant has 7-point leaves. Could you please explain what this means? Is it a good or bad sign?" Day 20
Week 3
Leaves. Curl up
5mo ago
1
5
Solved
buddhi_coop
Leaf Curling Weird
Why is my leaf curling like this ?
Leaves. Curl up
Leaves. Curl down
Leaves. Other
4y ago
2
2
Solved
Lordcrow
Leaves pointing up
Why are my plant's leaves pointing up? Is this normal?
Week 1
Leaves. Curl up
3y ago
3
3
Solved
EmberWeed
Leaves curling up and down and yellow leaves
What could be causing this?
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Yellow
3y ago
1
6
Solved
weefi
Brown leafes are extending
Week 7
Leaves. Curl up
Leaves. Color - Dark-brown
1y ago
6
7
Solved
growhow
i think my girls have problems, i dont know exactly what they need pls help
Week 2
Leaves. Curl up
Leaves. Curl down
4y ago
4
3
Solved
Dan1000
Leaves curling inwards and upwards
seed number 1 has started curling its leaves slightly inwards on itself, I am wondering should I be concerned? and also any help regarding seed number 2. it is growing but at a very very slow pace and abnormal shape. any ideas? or just let it be.
Week 3
Leaves. Curl up
Plant. Too short
5y ago
5
4
Solved
ZeroKnown
wrinkled leaves after starting 3rd week
Hi guys, since may 29th im in 3rd week, and started noticing some strange wrinkled leaf, searching on internet it could be lack of potassium, what do you suggest?
Week 3
Leaves. Curl up
Leaves. Other
5y ago
3
Solved
PurpGod
Dying leaves help
Leaves dying Turing yellow and brown
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Yellow
4y ago
2
3
Solved
pendeja420
Everything seems to be OK except one thing (week 3). I thought using the greenhouses at night made this, but it doesn't. When I check the plants early in the morning, their leaves are slightly curled upwards, just along the edges. As the hours go by the leaves flatten. Any clue?
Week 3
Leaves. Curl up
5y ago
1
3
Solved
Bootymissles
Week 6 flower HELP
Leaf tips curling but not discolored on my bubba kush. Had some pH issues last few weeks but finally corrected it. They weren't like that yesterday, it was 74 when I opened the tent today. What could it be? Is it a big deal?
Week 13
Leaves. Curl up
5y ago
5
2
Solved
Daweed83
random curling up
Plant looks good to me but has 2 leaves that are curling up. Im not too worried about it yet but really want to know why its happening.
Week 6
Leaves. Curl up
5y ago
2
2
Solved
AvoidantGrower
Burnt? PH lock-out? too much Cal-mag??
What do you think is wrong with this plant? All the other plants surrounding her are fine so I'm not sure what went wrong with this one. I thought it was cal-mag deficiency at first so I doubled cal-mag when feeding but it only proceeded to get worse. The buds look fine tho 👍😳
Week 8
Leaves. Curl up
Leaves. Color - Dark-brown
3y ago
2
5
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
Alejangrow
Anybody got any idea with what's going on with these 2? The 2 larger plants are showing the signs of some stress on the fan leaves. Oddly enough the runt of the 3 is not showing these signs. Has anyone seen this before or can help me identify it?
Week 15
Leaves. Curl up
Leaves. Color - Yellow
6y ago
1
2
Solved
pinkdragon
Just to confirm, this looks like nute burn, doesn't it?
Burnt edges, tips curled up, canoeing. I've been having trouble balancing airflow and heat in such a small tent, and as a result the tent is on average about 28 degrees celcius daytime and the plants still get a lot of wind. Looking for whatever advice you can give! :)
Week 8
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Mottling
5y ago
3
3
Solved
KUSH01
Leaves curling is it due to light stress or wind over canopy? Have provided pictures of leaves labelled "leaves curling" and also lamp to plant distance. Lamp to plant distance is 1.5 to 2ft.All leaves affected are the ones closest to light .Any advice greatly appreciated.
Week 6
Leaves. Curl up
6y ago
1
Solved
THe_Cannadaddy
Browning / curling of leaves late flower. 3/4 clones affected - all different strains. Refer to week 14 flower post
Browning / curling (up and down) of edges of leaves started 05/21/21 on the orange cookies Since then the OGK and TT have also gotten brown leaves, the Gelato is unbothered Could this be nutes? part of the flush process? I have also read it could be old age? a natural thing? halp
Week 14
Leaves. Edges burnt
Leaves. Curl up
Leaves. Curl down
4y ago
2
Solved
larryargus
Leaves rippled ? What causes this?
These are pics of day 13 seedlings. The larger leaves show signs of something but I don't know what. They are Blue Dream Autos in a 50/50 mix of Happy Frog and Ocean Forest. Temps have been 74 degrees F with 50% humidity the whole time. May be nothing but this is my first.
Leaves. Curl up
2y ago
2
1