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
Yellow leaves
Mrgrecoa
started grow question 5y ago
I have some problems here in my flowering pls need help
Open
Leaves. Curl up
Leaves. Color - Yellow
likes
Answer
BDar_medicine
answered grow question 5y ago
looks like light stress. how far are your lights away and what power? a basic tool in using is a lux meter app on my smart phone to help guide my way.
likes
Complain
Similar Grow Questions
Solved
BullWeedDog
Hojas de mi plantas puntas amarillas
las puntas de las hojas de mis plantas están amarillas no en todas sobre todo la de la parte de atrás del indoor, tengo reflector 400w a unos 50cm de distancia de las plantas, temperaturas a unos 28C. Que puede estar ocasionando esto!
Leaves. Color - Yellow
Setup. Strains - Photoperiod
Techniques. ScrOG
4y ago
1
1
Solved
stonedJesus
Please help. Last plant died exactly like this. Yellowing drying leaves from the bottom on all fan leaves while shoots get stunted / eventually affected.
Transp recently from 1g > 5g. Seemed ok at first day after (no wat) then leaves started rapidly yellowing / drooping. Tent is fairly small 40x40x120. Could it be the heat ? Also took out humidifier but still in same room tent vents. Is Canna Pro Plus watered between 5.8-6.2 ph ?
Week 5
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
5y ago
5
8
Solved
HAPPYWEEDS
Puntos amarillos en las hojas
Se nota muy poco pero hay unos tenues puntos amarillos en las hojas y quiero solucionarlo cuanto antes. ¿Qué le pasa?
Leaves. Color - Yellow
4y ago
1
1
Solved
vicisdope
Yellowing sugar leaves
Why are my leaves so yellow - dimmer is all the way down and I raised the light higher up. Like it suddenly can take it- see pics
Week 7
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
3
2
Solved
PortkeyCannabis
Low cal mag?
Is this low cal mag? Or just recovery from the nute burn? It looks like new growth?
Week 6
Leaves. Color - Yellow
4y ago
4
3
Solved
Erasmus
Yellow leaves and tips going brown
A few days ago I noticed some leaves turning yellow and today I noticed the tips of all the leaves look off. What am I doing wrong? To much/little watering? To many nutrients?
Week 8
Leaves. Color - Yellow
5y ago
1
2
Solved
Casualguy
Little discoloration
Im seeing some discoloration on one single fan leaf I just did a 6 week flush before I start my flowering nutrients
Week 4
Leaves. Color - Yellow
4y ago
2
5
Solved
Erkooo
People heeelp! I have a diesel autoflower and its flowering 3 weeks. My leafes are turnung yellow but only ones nort on bud but those "free". I think its not N because i fed her same first 3 weeks. So heelp
Leaves. Color - Yellow
6y ago
1
3
Solved
FoxyT
Plants heavily yellowing since week 4 of flower
Plants are yellowing too soon and too fast - if this persists they dont last the suggested 10-11 weeks -cant hang the 600W HPS any further away -havent fed too much nutrients if any too few -pretty sure i did not overwater Suggestions are appreciated thanks in advance
Week 16
Leaves. Color - Yellow
5y ago
3
3
Solved
Peweez
Could someone help me to identify the issue my plant has?
This girl isn't looking healthy anymore and I need to figure out why. What I did: I topped her pretty early but she recovered well (you can see it in my grow diary). A week later I transplanted her from 0.5L pot to her final autopot 14L. After that she had a hard time recovering.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
2
3
Solved
Cudison
Brown spot on leaves
Hi! I noticed brown spots on the leaves on my royal kush auto.It's already in flowering stage.Is this a calcium deficiency? Thanks for your answers! Peace&love
Leaves. Curl up
Leaves. Other
5y ago
1
1
Solved
CornerBud
Dry, brittle and yellow leaves
Just in a rush my leaves turned to yellow and are dry and brittle. It's an 62 days old autoflower in a organic soil. Do you guys have some shots?
Leaves. Color - Yellow
2y ago
1
2
Solved
Autogrowing
Hydro DWC
New to hydro, first attempt. Does this look healthy? On second week of bloom transition. The lower original leafs have some yellow on them and brown dots. But otherwise any input would be greatly appreciated.
Leaves. Color - Yellow
Plant. Other
4y ago
3
Solved
AlexHeadHunter
Curl up.
Who will tell why the tips of the leaves rise up?
Week 6
Leaves. Curl up
4y ago
2
3
Solved
Somebodyrandom
Leaves curl up/ no change of color
Hi 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
MrGrowthSpurt
Please Help me Help a Friend.
So a buddy of mine is growing outdoors, I'm growing indoors, we both are newbs, one of her plants is yellowing and decaying badly and she said she feeds 1 to 2 times a week rain water with no nutes and she doesn't ph the water. What could be the issue?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
4
4
Solved
Stinkygorilla
New growth lime green/yellow at centre
Please help me diagnose this deficiency or pest (plant 3 with the yellow new growth) last two pictures, no curling but looks like some pest damage, minor.
Week 15
Leaves. Color - Yellow
4y ago
2
3
Solved
N_e_O
Send HELP!
I wonder if this yellow ton and even starting the orange should be from the strain of is getting burn? What can i do? reduce sun light? should i start feeding with veg suplement?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
pupa420lupa
Yellow marks on some old bottom leaves
Am I right this yellow problem with few old leaves is caused by lack of nutrients( N and Mg probably)?
Week 4
Leaves. Color - Yellow
2y ago
1
9
Solved
the_canna_scientist
Fast-growers starting to show issues.
Got some issues on these fast growers. I've been treating it as a cal-mag deficiency, however I've been feeding calmag for two weeks and its only getting worse it seems. Any thoughts? PH is 6.0-6.3, PPM 444 feed, RH 47-50%, Temp 77-81f.
Week 5
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
3
2