The Grow Awards 2026 š
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
Leaves turning yellow
MissLemon
started grow question 6y ago
Hello grower community, Plant is on 3rd week of flowering and big fan leaves started to to light yellow. Is it just Nitrogen deficiency or smthg esle? Looking forward to your recommendations.
Solved
Leaves. Color - Yellow
likes
SNoWfLaKe420
answered grow question 6y ago
My guess is nitrogen deficiency supposedly you should feed veg nutes 1 or 2 weeks into flowering just a little and week it off kinda
1 like
Complain
Selected By The Grower
TimTheTerpMan
answered grow question 6y ago
This can happen in flower. If the new growth is all looking good. And it doesn't seem to spread rapidly I wouldn't worry! Happy Harvesting!
2 likes
Complain
Similar Grow Questions
Solved
Misanthrope
Leaf Discolouration in Flowering
5 weeks into flowering, grown outdoor in potted soil with regular nutrients. I've been spraying with Epsom salt sol'n once/twice per week for 3 weeks to treat what I thought was Mg def. Yellowing is starting now on upper leaves. Suggestions on what other steps to take?
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
2
Solved
SativaSaiyan
Yellowing tips on new growth and yellow fan leaves at the bottom
I have yellow tips (only slightly)on my new growth and some of the old leaves at the bottom have gone yellow Iām confused to weather I have nitrogen deficiency or nitrogen toxicity can anybody help ? Thanks
Leaves. Color - Yellow
5y ago
4
Solved
PickleRick
Yellow and dropping leaves
What could be causing my yellowing and dropping leaves? It doesn't appear to be nutrient related and initial thought was light burn but not entirely sure. She's young and hoping I can get her to bounce back
Week 2
Leaves. Color - Yellow
5y ago
4
5
Solved
Elgar
Leaf yellowing, brown spots
Hello guys, I have a leaf problem. There are purple stems, discolouring - yellowing and brown spots. I have added a lot of calmag and biogrow (Nitrogen) but the problem is worsening. I need your advice. Thanks
Week 9
Leaves. Color - Yellow
5y ago
3
1
Solved
420pete1
I am trying to figure out what I need to add or do to my plant and what the deficiency or pest problem there is please help first time grower look at the pictures and videos I took of the leaves please
Week 15
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
Solved
barkido1996
Hello guys, some leaves are yellow, it's only 2-3 leaves in the middle, middle low part of the plant.Yellow at the end of the leaves and green at the base of the leaves, it's subtle thing but I'm afraid it will worsen and spread over time
Leaves. Color - Yellow
3y ago
3
4
Solved
Slurpy_Terpy
Yellow leaf tips on healthy plant in dwc week 8 from seed vegging
Why are the tips of the leaves yellow on the highest growth points of the Brain Cake? - light burn? Since a few days the light is at 80% (mars sp3000 300w full spectrum led in a 60*120cm at 80cm above the top of the plants) - nutrient burn/shortage? Res changed a few days ago
Week 8
Leaves. Color - Yellow
5y ago
3
4
Solved
twotrees89
Issues after first sledgehammer flush, 4 weeks
Hey guys and gals, on week 4 of this indoor, hydro grow and I just hit this plant 5 days ago with fox farms sledgehammer for its first flush. Before this, the plant was growing very well. Is this due to the flush? Should I flush in tap water before next feed? Thx for the help ^^
Leaves. Color - Yellow
3y ago
5
3
Solved
Ftr_3650
Yellow leaves
Had a bit of nutrient issues, yellow leaves with some black spots and tears, will these leaves bounce back or should I remove them?
Leaves. Color - Yellow
6y ago
3
4
Solved
DEATR
Week 2: One of the plants still doesn't look good + other beginner questions :)
Second week and one of the plants has weird spots + leaves curled. Not sure what to do. Do I overwater? Is it some kind of disease or deficiency? No idea. Also, when should I start feeding the plants? And how much water do I need at this point? š„
Week 2
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Mottling
2y ago
6
6
Solved
Anomolae
Can anyone tell me what's going on in week 2? I transplanted and each plant seems to be yellowing on the lower leaves. Not very happy. Was dry when I took it out of the dixie cup and watered with 1/4 strength veg nutes and a root stimulator. It seems to be curling in as well.
Week 2
Leaves. Color - Yellow
7y ago
7
2
Solved
BrannabisTHC
PH problems?
Hey growers! These purple haze is in their 2nd week of flower. Only one of the two phenos are showing these symptoms. What might have caused this?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
Half_Synthetic_Growing
Droopy leaves, weird spots.
Does anyone know what's wrong with that bottom left plant? Those spots appeared pretty soon after I cleaned those filters. I'm thinking that it's a stress caused by that cleanse, no chemicals or such were used, but some roots were torn in the process. Deficiency? Disease?
Week 9
Leaves. Curl down
Leaves. Color - Yellow
Plant. Wilting
3y ago
4
4
Solved
DrBuffy
Yellowing of leaves during flower
What is causing yellowing of the bottom/backside fan leaves during week 5 of flower? Should I worry about it spreading? Increased bloom nutrients to 3ml/l recently but could have started when feeding 2ml/l. Or is this just leaves yellowing as a part of flowering?
Week 24
Leaves. Color - Yellow
Setup. Strains - Photoperiod
Setup. Outdoor
5y ago
3
3
Solved
deepsheeba
What is wrong with this plant
Can you please tell me what is that? 1,5 Bloom GHE 1 Biobizz BLoom 0,5 Fish MIX 1 Algae concentrate 0,5 revive 1 ml bio heaven 1 ml Bio acti vera 2 drops PRO Bloom 2 ml Cal Mag Bio BIzz HNO3 as acidifier. I bring everything down to 650 ppm and 6,3 pH soil : ALL MIX
Week 9
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
3
Solved
Leanleanwok
OD
Nitrogen overdose? Ph 6.2-6.5 Biobiz grow/heaven/top max
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Other
3y ago
4
Solved
denis_naprimer
Leaves look a bit yellowish and dopey.
Sorry was not able to attache a new photo to the previous question, so I just created a new following question. What am I doing wrong with my plant?
Leaves. Color - Yellow
4y ago
1
1
Solved
Nick_Frampton
Weird pattern on leafs
Hey everyone. I've noticed some of my plants have slight yellowish color on them. Can anyone help me out with this? The third picture is my best plant so far
Leaves. Veins - yellow between
Leaves. Color - Yellow
Plant. Stem - Red or purple
4y ago
1
1
Solved
Anonymous_2022
Magnesium deficiency?
Hi Growmies.. I seem to be getting alot of yellowing leafs and brown spots.. Am i right to say Magnesium deficiency? Calmag do the job? Thanks for your help š±
Leaves. Color - Yellow
3y ago
3
5
Solved
YellahJelle
Nute defficient?
Are the leaves lookinkg okay? I believe that the newest fan leaves and branch leaves appear a bit bright in the middle. Is that nute defficient? And does she look healthy furthermore?
Week 8
Leaves. Color - Yellow
5y ago
1
2