The Grow Awards 2026 đ 
Bad deficiency
Mystummyhurtstarted grow question 4y ago
What is this? This is happening to my hot tamales. I thought that it may be nutrient burn at first but itâs starting to look like a deficiency?
Open
Leaves. Curl up
likes
Answer
Ramgianswered grow question 4y ago
Sembra una leggera carenza di NPK sei abbastanza avanti con la fioritura non mi preoccuperei troppo buona fortuna e raccolto abbondante đ¤ đ
likes
Complain
Similar Grow Questions
Solved
Bonkheads
Upward curling leavesYesterday applied heating mat bcs temp was dropping to 14C nights. Now it stays 30C allday with RH 30%. I have found my seedlings looking like this morning. Leaves look dry. Could this be the excessive heat shock? Or soil dried up quick? What should I do? Water? Raise RH? How?Leaves. Curl up
3y ago
1
1
Solved
TechDCo
1. Over Fed (seaweed?)
2. Burnt? Cauliflower..
3. Calcium Deficiency
4. Hydrogen peroxide 12% Food-grade 30/70 Mix.
Personally I think it's the hydrogen peroxide 12% mix, the hydrogen gave one of its atoms to the neuron of the Diatomaceous earth metal clay. With help from heat2y ago
8
7
Solved
Anorak
Tips burning, plants dying, very fast progressionGreetings growers! Plants are dying, every grow it starts in the 3rd week of flowering. Using Green House Feeding Organic, PH is up to the point,100% sure. Soil - light mix,vermiculite, perlite. Top leafs are burnt, bottom leafs are turning yellow and falling off.Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Curl up
4y ago
2
2
Solved
Kaya666
Any idea why my top leaves would be taco'ing at the edges? I keep my room about 72-73 degrees and am just using one CFL bulb (45w) that I keep at least 6 inches above the plant. And I keep a gentle fan or two on her most of the time to keep the air moving. Thanks.Week 4
Leaves. Curl up
5mo ago
2
4
Solved
HAPPYWEEDS
Dark dots in leaves. Lamp burns?I saw this dark dots in leaves but only she has it. She was exactly under spider-farmer sf1000 at 30 cm. Now I moved to other softer light at 40 cm. What do you think? Lamp burns? They're dry and curl up. Some images are edited for better appreciation but you have also originals.Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
4
3
Solved
TheGourmetWeed
Heat, RH or overwatering? Or alltogether?Hey my fellow growers!
The grow reached 32Celsius the last 2 days in the last hour before going into night time. On that time RH goes down to 32% and this seems like it's stressing this lady a bit.
Yesterday fed her nuts - maybe a bit too much?
Thank you for stopping by!6y ago
2
2
Solved
CoronaGrower
What could be causing this?I'm experiencing yellowing, browning and crisping on some leaves, but only on the main colas so far.
I have checked the PH in and out. In has always been perfect, but the PH of the run-off was 5.8 so I'm flushing to rule out nute lockout.
Anything else it could be??5y ago
3
1
Solved
FullFuzzy
Upward curling of leavesOne 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?6y ago
1
2
Solved
Herbalist7
Switched to flower,12/12, new growth curling/cuppingHey having some problems 2nd day agyer switching to flower and my new growth is curling/cupping upwards.. Can it be my HPS is too close, or is it my nutes need to be more flower based...trying to catch it before it too late. Can i send a pic?Leaves. Curl up
Setup. Strains - Photoperiod
Feeding. Other
6y ago
2
3
Solved
Somebodyrandom
Leaves curl up/ no change of colorHi everyone, i got 3 plants and 1 of them has the problem that his leaves curl up without change of color, another plant has it a bit but not so much and the other is fine ( they are 9 days old ) i treated them all the same.anyone knows what it means and what i gotta do ?Leaves. Curl up
2y ago
1
1
Solved
Chilipadi
Older fan leavea tacoingAre the tacoing on leaves caused by lights? Only happening to older fan leaves.Leaves. Curl up
4y ago
3
5
Solved
TrimQueen
MainlineDid I mainline it very late? I'm afraid she's tking too many days to get bigger again.Leaves. Curl up
5y ago
2
2
Solved
ObserverInterest
Is this nute or sun burn? What should I do to save my babies ?I upped the nutrients to week 2 of veg state (biobizz) and put the light to 50% intensity. I put the light at 6 inches above recommended height (which is recommended on the Mars Hydro website for beginners). . IS THIS NUTE BURN OR LIGHT BURN?2y ago
7
3
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
3y ago
2
1
