The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Hi fellow growmies, Could you identify my problem...
Qutro
started grow question 5y ago
Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?
Solved
Leaves. Color - Yellow
likes
Rookie_grows
answered grow question 5y ago
Personally I would say nutrient lockout rather than one specific issue, check the run off ppm and Ph and adjust accordingly then feed at half strength. PK and calmag are both notorious for causing lockout in the medium
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
DonWild
Iron issue
So if this is an iron issue. Whats the best way to fix it?
Week 3
Leaves. Color - Yellow
5y ago
2
Solved
BorderStateGrow
Yellowing middle and mainly bottom, been in this pot for 3.5 weeks
I am seeing some yellowing going on in some middle but primarily bottom part of the plant. I am growing in organic soil with gaia green 4-4-4 at 1.5 tbsp per gallon of soil. My other plants are in same soil and not showing these symptoms. Is this a cause for concern? 1st grow
Leaves. Color - Yellow
9mo ago
2
Solved
perilousp
Day 21 new leaves look kinda pale and yellow, whyy? Also all the stems are kinda red, what could this be from?
Week 3
Leaves. Color - Yellow
6y ago
3
4
Solved
DibbyDab
Advise to flush or feed in Veg
Does this is look like a nute burn, deficiency, or ph problem? The two plants that are growing a tad taller have had yellowing tips some curling downward. Don’t want to overreact and cause it to worsen, they’re looking healthy otherwise. Any advise whether to flush or feed?
Leaves. Curl down
Leaves. Color - Yellow
1y ago
4
Solved
Organic_LarF
Frisian duck
Please have a look at these leafs! I gave a new dose nutrients by wormcasting rockdust and guano. Also some seashell chalk. I waited a bit, but it seems to continue spreading, at low pace.
Week 16
Leaves. Color - Yellow
6y ago
2
3
Solved
DeepWaterGrower
Some new leaves are getting yellow/weird. Do I need to worry?
Hi guys, from today some of new leaves are growing like this. Is everything regular or is it a sign of something wrong? Given my inexperience I don't understand the symptoms from the leaves. Info: DWC - 42 days from germination - PH 6.0-6.4 - EC 1.5 - Temp: 29 - RH 60%
Week 6
Leaves. Color - Yellow
4y ago
8
3
Solved
Rumham
Small red spots on top canopy leaves week 4 of flower
Deficiency of some kind. Leaning more towards a calmag shortage or even a phosphorus deficiency? Any thoughts? Small red spots with minor yellowing of leaves in week 4 of flower.
Leaves. Color - Yellow
5y ago
2
Solved
CaptainChunk
First grow, yellow spots spreaded all over leaves. How can i fix it? My plant is sick, PLEASE HELP! get's worse. Suspecting septoria!
Hello. Been growing this Wedding Cake Auto for 9 days. LED 260W panel 3ft away from the plant(20/4 light schedule). Growing in biobizz lightmix+biotabs starter kit (no tablets yet), avg temp 24C, avg hum 55. Giving her only tap water (ph around 7-8) every 3 days (100-150 ml). thx
Leaves. Curl up
Leaves. Color - Yellow
Setup. Seedling
5y ago
5
7
Solved
AutomaticallyDank
Discolouration of some leaves
Is the colouration of these leaves someone to worry about? She’s a young, 2 week old Wedding Cheesecake auto and I’m new to growing and just want to make sure she’s ok! She’s growing in a 70/30 split of coco and soil and has only been fed water so far! Is it nute time?
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
7
3
Solved
TechnoNinja
Orange/yellowish dots on my auto blueberry
Is this calcium or magnesium gromies? Safeee
Leaves. Color - Yellow
5y ago
1
2
Solved
Jea1986
Can someone help a beginner please ?
Can someone help please, I just got them last week I potted them and now the leaves look yelliw with dark Brown edges. Could it be too much nutrient? I did not Add some... maybe the soll?
Leaves. Edges burnt
Leaves. Color - Yellow
2y ago
1
2
Solved
Reedius
nute burn or lack of?
Hey guys, Is it nute burn? Or lack of nutes? I gave them nutes on the 25/04. - 1,5 litres of water with 0,5ml of biogrow, 1ml of biobloom and 2ml of topmax by biobizz. I had given them 1ml of biobloom and 1ml of topmax on the 22/04. Soil is from compo sana. Thanks for the help
Leaves. Color - Yellow
Leaves. Color - Dark-purple
Feeding. Deficiences
6y ago
3
2
Solved
Gottajiboo
Hot weather, not enough super soil, Leaves Yellowing???????? Need Help. Am I losing these beauties?????
HELP.. Temps in our tents got into high 90s, working on cooling. I thought we started to have nutrient depletion of the super soil as there is only about 2.5 to 3 gallons of sohum in each pot. Now I started feeding calmag, FF big bloom, FF Tiger Bloom. Leaves still yellowing????
Week 7
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
2
Solved
greenhousegrowgirl
Possible Nitrogen Deficiency?
Is this a nitrogen deficiency? I had a yellowing leaf or two at the bottom of the plant which have since dropped off, but rest of the plant is looking patchy now. I have just switched from fish mix to bio grow.
Week 8
Leaves. Color - Yellow
4y ago
1
3
Solved
Just_Weed
I need advice on what to do with this plant. I flushed her a bit and I think nutrient burining is not showing on new growth, what ppm should i feed her?
I watered only last week and mesaured runoff ppm and ph. Water was 350 ppm and 6 ph and runooff was 700ppm and 6.7 ph. Before when i fed her with 850 ppm runoff was 1500 ppm. I would continue to water only but there was a lot of yellow and pale leaves so gave her light dosage.
Week 18
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
2
2
Solved
Segitseg
Leaves and stem
Hello.sorry the bad english. What could it be?
Leaves. Color - Yellow
4y ago
2
Solved
Sorrowcz
Hello guys I have problémy with leafs and purple stem on one plant of 7.. This plant is completly different of all others. She have minimum leafs and she start flowering 7 days before others.. Any ideas what i can do with that?
Leaves. Color - Yellow
Plant. Stem - Red or purple
3y ago
1
5
Solved
Jayvo
Light green / yellow marks on leaves
I was just wondering why I have green / yellow marks on my leaves, I think it’s because of light stress but I’m not too sure, I’ve been giving it 700PPM in nutrients, thanks in advance
Leaves. Color - Yellow
5y ago
1
1
Solved
DariaFarms
2 autos with crispy feeling sad looking leaves, how can I help them? (more info in diary pl & crit)
2 of my autos have been growing leaves that feel crispy and look deformed. I have been watering when the top 5 cm of the soil dries, but I fear maybe I fed them too much nutrients. The temp has also been on the high side (30C 80F). What could be wrong and what can I do for them?
Leaves. Curl up
Leaves. Color - Yellow
1y ago
8
5
Solved
La0laEsMia
Help determine why plants are yellowing
I've noticed my plant is turning yellow, starting from new fresh growth (old growth is not affected). I am seeing early stages on my other plants now. My PH runoff yesterday was 6.7. They are getting nutes. filtered water. light 65% 14 inches. Added Cal Mag last week, not helping
Week 9
Leaves. Color - Yellow
5y ago
2
2