The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Leaves curling
Salvaturbe
started grow question 5y ago
i have a problem with the leaves of these plants, some seem to curl on the edges
Open
Week 5
Leaves. Curl up
likes
Answer
ChitownCannaChica
answered grow question 5y ago
Light/heat stress most likely! I had a plant taco before because it was too close to the light. ✌️🏻💚🌿
likes
Complain
Cockneycultivar
answered grow question 5y ago
I had this issue about week 4/5. I figured for me it was heat stress. What’s the humidity and it could also possibly light distance.
likes
Complain
Similar Grow Questions
Solved
TheeLemon
Overwatering?
Can anyone confirm that this curling up is due to overwatering? I don't see any yellow leaves that would indicate overheating. But I read it could also be a nitrogen defeciency? One pic is upside down, I wasn't stoned taking the pic, honest 👀
Week 2
Leaves. Curl up
4y ago
5
5
Solved
hooolian
Kolas folding upwards?
Some of the tops of some colas are stretching up and not flat to allow the pistils to form correctly. almost looks as though they are stressed - I have had similar things happen with other tents and had to remove the plants in the end. How can I stop this?
Week 4
Leaves. Curl up
3y ago
2
2
Solved
Ronzo9
Orange leaves getting worse
What the fuck is going on with this plant? I spotted some nute burn last week so I got advice off here and flushed it out. Once it needed watered again I went with half the recommended nute dosage and now it looks like it’s getting worse. What the hell can I do?
Leaves. Curl up
Other. General questions
Feeding. Other
6y ago
1
2
Solved
Manijuana
Maybe I'm being a big baby but I'm so sad. I have a dwc hydro set up and all my seeds that sprouted all crash and burn within a few weeks. Im 7 weeks in and they look small and leaves die asap. Im hella precise. What should i do?
Leaves. Curl up
Leaves. Curl down
Plant. Too short
4y ago
4
4
Solved
Weeweeh
Need help
Watered 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 infos
Leaves. Curl up
Leaves. Curl down
Setup. Strain - Autoflowering
2y ago
6
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
Goenndalf
More rusty spots
See this now on more and more leaves. Only upper fan leaves that get good light exposure seem to be affected from this and also the clawing. Have backed off the nutes completely for now and will add ground egg shells to the water in the hope its a Ca deficiency.
Week 8
Leaves. Curl up
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
1
1
Solved
PakkaFarm
Leaves curl and growth retardation :(
Hi, anyone can help me ? What about this leaves and plant growth retardation ? nitrogen deficiency or heat ? :/ Red Poison Auto from Sweet Seeds Day 25 ppfd 300-400
Week 4
Leaves. Curl up
Leaves. Twisted
3y ago
3
3
Solved
OwnWayGoodWay
Leaf problem and purple stems
Hi, I have a problem with my auto. I have purple stems and problems with the leaves. The soil contains organic nutrients and mycos sometimes I add flowering boost from royalqueenseeds so I don't think it is P or K problem. Is it a nitrogen deficiency ? Thank you for the answer
Leaves. Curl up
Leaves. Color - Yellow
Plant. Stem - Red or purple
6y ago
3
Solved
Downyowo
ak47 auto. 1 weeks. help :(
The leaves look shriveled and dry. In the morning the leaves curled upwards and I left team in the sun for 3-4 hours and this happened. I think it will probably die... Outdoor
Leaves. Curl up
Leaves. Twisted
Setup. Seeds
3mo ago
3
3
Solved
Kokotokes
Both plants in same pot but one is having problems yellow leaves burnt curling back turning white but other plant is just slight nutrient burn and leaves turning black on top or dark dark purple is it just the plant going thru flowering. Should I harvest it before it gets worse?
Week 12
Leaves. Curl up
6y ago
2
2
Solved
elevensixty6
Calcium "deficiency" at 8ml/RO gal and still no improvements in weeks.. now my other tent has started the same spots.
Cal excess or Mag problem? My Blueberry and Wedding Cake Autos are now spotting in new and old growth. Even at 8ml/gal CALiMAGic for a couple weeks no improvements. feeding nutes with two days of just calmagic RO water in between with runoff about 0.5 gal daily in FFOF soil
Week 7
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
6
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
Dankbudz84
Leaves curl on upper new growth and mid but not lower.
I’m using the canna coco line except boost, looks like phosphorus deficiency. I just lowered my a and b 0.7 ec and added 0.3 of pk for a total of 1.0. Is this phosphorus deficiency and do you think my changes will help. Leaves are a little dark shinny and the shape is odd.
Leaves. Curl up
Leaves. Curl down
4y ago
1
Solved
HecticJardin
Leaves curling
I notice some leaf curling and also have some holes. Is it an issue? I raised the lights up a little as they were down below 20" i want to some defoliation but not sure where to start or if getting rid of big fan leaves and small leaves at the bottom will stunt growth
Week 5
Leaves. Curl up
5y ago
1
1
Solved
BeachGanja
Leaf issue
Hey everyone, 1st grow and noticed the follow leaf issue this evening.
Week 2
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
2
Solved
PAPH_Grow
browning leaves
Anybody have any idea on the cause of my leaves getting brown spots and curling at the tips? It's really just on the big mature leaves and leaves near the buds. Any smaller and younger leaves are still fine. Maybe a nutrient issue? Or is it just that its close to harvest time?
Week 13
Leaves. Curl up
Leaves. Other
5y ago
1
Solved
buddhi_coop
Leaf Deficiency
What’s going on with my leaves? Looks like the start of a deficiency.
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
1
Solved
Smokey89
Soil ph 5 HELP
OK guys managed to get a soil ph reader. The ph of the soil is 5. My fan leaves have clawed on my photo biscotti from barney's. I've just watered using water ph'd at 8 gave her 2 litres. Any suggestions going forward. Should I remove the clawed leaves?
Leaves. Curl up
Other. General questions
4y ago
7
Solved
Mraady
Hey community what could be the reason for curling up of edges of leaf , i am having this issue since starting of grow and now its 12 days from germination even new leaf's show same issue edges curled up a little could it be genetics ? Temp is around 24-27°c and humid is 60-65%
Week 1
Leaves. Curl up
7mo ago
2