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
Strange yellow spots
blackcald
started grow question 6y ago
Strange yellow spots on top leaves, what am I doing wrong?
Solved
Week 3
Leaves. Color - Yellow
likes
TimTheTerpMan
answered grow question 6y ago
According to your log your pH is a bit high.. this can cause a lockout of iron which it looks like what its doing.. shoot between 6.0 and 6.5 if possible! Cheers and happy growing!
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Poppetnewbie
nutrients ?too much
I got a little bit ahead of myself (not 1st time with autos) but I got a bit egger on the nutrients knowing that I shouldn't and I skipped my enhancer growth and went straight to enhancer boost🙈 why oi why ?? So I've backed up and now I've added the N section back into my N.P.K
Week 5
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
2
Solved
trailerparksupervise
Is it normal for new growth 10 days into flowering to be lightening in colour? I am new and noticing that it is fairly lighter than previous veg growth before as my nutrient needs and feed has changed. Just want to be safe! Thx 😄
Week 9
Leaves. Color - Yellow
6y ago
2
2
Solved
LokalGrenz
Light green yellowing
Barney’s farm amnesia haze is in flower day 84 turning light green yellow I’m using Sohum soil not sure what’s the issue I’m using PH distilled water at 6.5 and I recently used Gaia greens bloom I have another amnesia haze same soil same age no issues like these
Leaves. Color - Yellow
3y ago
2
3
Solved
Organic_G
My Plant has a defizid
Hallo Freunde, Meine Ladys haben wohl bisschen Probleme, kann mir jemand sagen was es sein konnte ?
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
2
2
Solved
gamberro
Yellowing lower leaves in early flower
Week 4
Leaves. Color - Yellow
3mo ago
3
Solved
Nat889
Why is the bottom two leaves turning yellow. The ph has not changed from 6.8.
Week 3
Leaves. Color - Yellow
5y ago
1
1
Solved
Changinator
Deficiency
Hi! Is my grow trying to tell me something? Like a nutrient deficiency? I’ve never done this before. Appreciate any help 🙏❤️
Week 6
Leaves. Color - Yellow
4y ago
4
7
Solved
plasticbeach
Underfeeding?
Beginner grower here. Had some issues with underwatering and it's slowly recovering. Now am unsure if yellowing leaves are signs of underfeeding as it's still early in flower or due to the underwatering. Bottom leaves yellowing and dying off too. Using GHF Bio line as recommended
Week 9
Leaves. Dropping off
Leaves. Color - Yellow
3y ago
3
2
Solved
Growergirl_1996
Leaves yellow And holes
Good morning,(Day 30 after germination) I watered the whole week with pure water. Now some of my leaves turned yellow and some even have small holes. Is this a lack of some nutrients? Today I started to use 0.5ml/l BioGrow,BioTop and BioBloom. Plz help 🆘 me
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
1
1
Solved
mf_bazinga
Hello growers,found on my 1st plant 2 yellow fan leaves getting yellow,and found aome wierd things on it under microscope,can be bug or nothing to worry?
Leaves. Color - Yellow
Leaves. Other
2mo ago
1
1
Solved
MrTasuri
Nutrient lockout or light burn?
Hi guys. I'm facing problems after problems :/ I changed my soil and some of the plants turned back from yellow to green, which was very nice to see. However, now leafs tips seems to burn and I'm wondering does it look like nutrient lockout or light burn? Thank you!
Week 3
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
5y ago
4
5
Solved
870Evo
What does my plant need and what do i do wrong?
I need help, I can not exactly see what my problem is with my plants, I used the first time 70% coco and 30% perlite. I am just in the 4th week and fertilize my plants with: -Canna Coco A & B 1ml/l, Bio-Heaven 1ml/l, Bio-Bloom 1ml/l, Top-Max 0,8ml/l. What do my plants need?
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
4
Solved
Sauswaus
Lower two sets of fan leaves have gone yellow, leaves on internodes in between haven't changed colour. Not sure what's causing this. Nutes? (3-4 more weeks of time released nutes in soil) Too much water? Did water a bit extra because I wasn't going to be home for a couple of days
Week 9
Leaves. Color - Yellow
7y ago
3
3
Solved
Tallen79
My girl is sick! Please help me getter back to health!
Someone please help. I'm almost 6 weeks into flower. I've been battling with fungus gnats and I thought I was gaining control but suddenly my girl started looking sick. I'm getting yellowing in the leaves, some sagging and some yellow/orange spots on leaves. Please help!
Leaves. Curl down
Leaves. Wilting
Leaves. Color - Yellow
4y ago
3
5
Solved
iwantabike
problems with new leaves
Why is this leaf curved, and this other one like burn??
Week 2
Leaves. Color - Yellow
5y ago
1
Solved
SensiHank
Gelbe Blätte unten troz 100 % Hesi Chema
Hallo meine Black Dominas werden unten rum Gelb die neuen Triebe werden Gelb Gedüngt wird mit 100% des Hesi Chemas 50 ml Bloom + 25 Ml Phosphorplus 20 ml PowerZyme und 2 tropfen Super Vit auf 10 Liter sollte ich den Bloom und den Phosphos Plus bestandteil im Wasser erhöhen?
Leaves. Color - Yellow
5y ago
1
2
Solved
Qutro
Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?
Leaves. Color - Yellow
5y ago
1
1
Solved
ANUBIS
about leaves and growth
glueberry auto leaves are growing in light yellowish colour and I'm a beginner please give me some remedy Regards
Leaves. Color - Yellow
5y ago
3
5
Solved
Bigbugs1
Help me
I use biobizz fertilizer. I'm moving forward by rising step by step per pot and doing 2 full 1 empty watering, I'm doing 3.5lt irrigation, my latest fertilizer table grow 3ml/L bloom 3ml/L top max 1ml/L alga a mic 3ml/L cal mag 1ml/L Ph6.4, but the problem seems to me like calciu
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
3
Solved
SaganSky
Remove fan leaves or leave it be. 27 days old Bubble kush auto
Hey folks I'm in desperately need of some advice, first time grower here. She is about 27 days old now and started to preflower when 3 weeks old, isn't that early ? Also should I remove any fan leaves or just leave her be. since its starting to change color. please advice. Tnx
Week 3
Leaves. Color - Yellow
6y ago
6
3