The Grow Awards 2025 🏆

Chat

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

Recommended

Back to Grow Questions

Leaves curling down

Floristasstarted grow question 5 years ago

Leaves curling down and canoeing is this heat stress?

Floristas

Floristas

Solved

Leaves. Curl down

likes

AmnZhzanswered grow question 5 years ago

Hi, i.m.o. seems like overwatering, but could be both. What type of light you got?

1 like

Complain

Selected By The Grower

MiPotFarmanswered grow question 5 years ago

Yes it looks like heat stress and possible too high/low humidity! You need to get your humidity under control if it isn’t and gain more air flow by either getting an exhaust hooked up if not and possibly a fan added in!

1 like

Complain

Similar Grow Questions

Solved

Ancient_Genetics

I need some help . my PH of soil is problem , and i can't just replant them now becouse i just plant them in 5l pots , and they are stress out of it a I have a problem with my uper leaves turning yelow on the edges, and she can't use phosphorus, becouse PH of soil is 7,35 to 7,65 depending on part of soil i check, how can i lower my soil PH to 6,2 to 6,9 ,If someone now a good way to solve this problem, I would be grateful.

Leaves. Edges burnt

Leaves. Curl down

3 years ago

4

4

Solved

I need Help getting rid of the claw My sativa keeps showing “the claw” after being fed only water past two feedings. Humidity is back to 52% 78 degrees in the tent. Is this normal?

Leaves. Curl down

3 years ago

6

6

Solved

Ancient_Genetics

leaves turning on edges of upper leaves yelow.the lower leaves have started to turn yellow as well as the edges of the upper leaves, does anyone know how I can stop this and help her, also is problem is big or not ,now is a 34 days of planting it. overwhater a bit ,and is raining 2 days days , just giving you more info.

Leaves. Edges burnt

Leaves. Curl down

3 years ago

2

Solved

Overwatering or underwatering or other cause?It's very hot in Rome (30+ degrees) and was away for a week. Got a friend to water mid-way. She gave quite a lot, 700ml. Came back after 3 days, plant was fine. Watered again and after 2 days, leaves dark and wilted. Put in direct sunlight, left for 3 days. Leaves died.

Leaves. Curl down

Leaves. Wilting

Plant. Wilting

3 years ago

2

4

Solved

Did I do the right thing? Pls check my update on this week!Can my Growmies check my update on this week please? Ppm shot up and I noticed nute burn. Weird bc I have only added water since last week. I cleaned the pump, removed air stone and lowered ppm. Definitely seems like too much nutes - hoping they’ll perk up.

Leaves. Edges burnt

Leaves. Curl down

Leaves. Color - Yellow

3 years ago

2

2

Solved

Leaves folding down Week #7 of flowering. Leaves are folding down.. what’s the reason?

Leaves. Curl down

Plant. Other

3 years ago

3

10

Solved

Wilting and yellowing leaves after vinegar water solution I sprayed a mixture of 1/4 spirit vinegar + 3/4 water under the leaves to get rid of aphids (which may or may not have been the problem) earlier today. Now checking on her, I see yellowing of several leaves and wilting of others, which has me worried... normal, or a problem? 😳

Leaves. Curl down

Leaves. Color - Yellow

Other. Bugs

3 years ago

8

11

Solved

Leaves canoeing I have noticed canoeing on the leaves any suggestions as to what could cause this? I have been watering with tap water only with approximately 16hrs of daylight but I have been leaving it a windowsill overnight could the streetlights affect it? (Fan leaves bottom left reference)

Leaves. Curl down

3 years ago

7

3

Solved

PietertjeOpDeLijn

First grow, Leaves turning yellow, What is best to do?Hello, Just started with my first grow, Now the leaves are turning yellow, What is the best thing to do now I am using Plagron Terra Grow, 1,5ml on 1L water.

Leaves. Curl down

Leaves. Color - Yellow

3 years ago

6

Solved

Nutrient burn?Hello I have one plant with yellowing leaves that are also curling downward. Only one plant of 6 has this problem, I suspect maybe this one is just sensitive to the nutrient rich soil? I am using fox farm happy frog and have added no other fertilizer. What to do, flush all?

Leaves. Curl down

Leaves. Color - Yellow

3 years ago

2

3

Solved

Leaves Dark green leaves curling down

Leaves. Curl down

3 years ago

1

6

Solved

Dealing with transplant shock Yesterday i transplanted them which shocked them a bit. Lower leafs are withering. Any tips on how to deal with transplant shock?

Leaves. Curl down

3 years ago

2

2

Solved

Droopy Gorilla cookies auto 3 inch/7,5cm deeper is moist. Not wet. The top of the soil, first two inches, is dry. Last time watered was 3 days ago 27/7. Today the seedling leaves got droopy. Any suggestions? Doesn't look like windburn. Moisture 55%-60% Temp 75-77°f / +-25°C Light: 20inch - 30% (fc4800)

Leaves. Curl down

3 years ago

3

3

Solved

What comes next? ( Sorry no diary..)Nitrogen toxicity+ heat and this is the result as you guys told me. I watered only with ph balanced watered for a couple of feeds but you can see her current state.. i stopped biogrow for some weeks now and she only gets biobloom (0.7-1ml per L). What else should i do? Day 57

Leaves. Curl down

Leaves. Twisted

3 years ago

3

2

Solved

hanging leaves ?Hey guys, i was wondering if one of my plants maybe needs special attention bc it looks like leaves are hanging a little bit.. I water every two days with around 150ml per pot and started gving some nutes (see above for ml per plant).

Leaves. Curl down

3 years ago

1

1

Solved

Ancient_Genetics

What deficiency this is ?Perhaps in these pictures you can see better, what deficiency this is, whether it is phosphorus, potassium, magnesium or zinc?.

Leaves. Edges burnt

Leaves. Curl down

Leaves. Color - Yellow

3 years ago

1

Solved

leaf bending On day 18 of grow i noticed that my leaves are starting to bend backwards, im new to growing so im not sure if im doing somthing wrong. I belive all info is on my diary Please let me know if im doing somthing wrong. Im also colour deficient so if you notice anything let me know.

Leaves. Curl down

3 years ago

3

3

Solved

Ancient_Genetics

They were slightly overwatered, the soil PH of 7.1 to 7.3, lacking phosphorus, maybe magnesium to. Branches from the sides are stretching, but I noticed thet lower leaves started to turn yellow a little at both. If anyone knows good advice to help them out, I would be grateful.😅

Leaves. Edges burnt

Leaves. Curl down

Leaves. Color - Yellow

3 years ago

3

4

Solved

Dead for good ? I did the mistake yesterday of digging her out to check (she was easy to dig out since she had no roots). I did another mistake, i cut the tip that had a a darker color (I tought maybe it was root rot) Now it is in this state. Is it time to give up ?

Leaves. Curl down

3 years ago

1

4

Solved

Leafs curling (After super cropping) (Look at diary for more pics and vids)I just did some super cropping and chiropractic https://www.youtube.com/watch?v=XdfW2p-lHN0 to my plants Last watering was 26/5 and i just watered them again today. Only few of the leafs looks like this(it might just be the stress) However, is there any other reasons for this?

Leaves. Curl down

3 years ago

1

2