The Grow Awards 2026 🏆 
Yellow again
Similar Grow Questions
Solved
Quintus
Is this a deficiency or some form of toxicity (autoflo/cfl 125w/ led 300w)Hello guys i'm a new grower, I have 2 plants one Purple Queen Auto and one Northern Lights Auto.
On the lowest 2 leaves of the purple queen there is this thing (picture)
It is only there on one plant only and they have the same water each time (1L)
Do anyone know what i'm facingLeaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
1
Solved
goldfinger
Deficiency or Nute Lock?I was a told a week prior I was feeling too much. So I stopped. I left town for 4 days and came home to the current photos. One looks like nitrogen deficiency, the other looks like calcium deficiency except I've fed 1tsp of tiger bloom, .5tsp of Cal-Mag and big bloom last week.4y ago
3
3
Solved
fiatchd
Leaf problemsI think I did use too much fertilizers, whats happening here?
https://growdiaries.com/diaries/180523-grow-journal-by-fiatchdLeaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
2y ago
2
5
Solved
Clout_god67
Organic peat controlI think my plant is being eaten but gnats and it looks like nutrient damage on it but I haven’t given ANY nutrients to it. What should I do? Can you diagnose my plant? Any remedies? I heard cayenne pepper can be used for a pesticide is there other things? Does Neem oil work well?Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
9
8
Solved
smells_like_weed_in_here
Yellowish color on most of the leaves and the condition did not change after watering.
I suspect it's nitrogen deficiency or some pH problems.
The plant is in pre-flowering, with sex being revealed. Will go into flowering soon.
I watered it with 1.5l
Any thoughts?Week 13
Leaves. Color - Yellow
6y ago
2
2
Solved
Seth_101
Foxtailing Yellow Leaves White Trichomes - WHAT HAVEW I DONE?!Hi! It's my first grow and I thought I was Doing alright. After I've bought a tent, seems like things got worse. My flower is an auto in week 13.4 (supposed to take 9-10weeks) and I'm flushing since about 10 days. Still the trichomes are pretty clear. What should I do?Leaves. Dropping off
Leaves. Color - Yellow
Setup. Strain - Autoflowering
1y ago
1
1
Solved
Dean1
Curling leaves and yellowingHi I’m having some leaf issues at the mo on one plant the leaves tips are curling down and the tops of both are going yellow as you can see in the photos temps have been cold for past few nights so lights on at 21 lights off 16 for 4h using soil feed ph6 lights were 25cm 2x600w5y ago
2
1
Solved
IceeTea31
HelpWhat is the issue? do they need calmag or should i flush them?
if i should flush them what ph should this water have?Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
5
5
Solved
Aeries
Should I scrap her?Hasn't slowed in growth but the leaves are yellow? They have been yellow since she popped....Week 1
Leaves. Color - Yellow
6y ago
1
1
Solved
Speedypete
Yellowing LeavesThere is some yellowing leaves towards the bottom, some have burnt tips is this nutrient burn or another issue?Week 7
Leaves. Color - Yellow
5y ago
2
2
Solved
GhettoStyle
problems with clones!Friends, tell me what's wrong with the plant! I don't understand it's under-feeding or over-feeding! At first I thought it was a cal-mag deficiency, then I saw a purple stem and thought it was a phosphorus deficiency! Now I don't know what it is anymore! at the very beginning itLeaves. Color - Yellow
Setup. Clones
Feeding. Deficiences
4y ago
1
7
Solved
Kazal
Yellowish leaves with brown stampsThe half tent tha i have do topping looks like something misses can u help me?
3week of flowering now
The leaves are yellowish some have brown stamps and the 2 of them thats bigger have very slim leaves at the top
The enviroment is kinda cold with 15-23 CelsiusLeaves. Too few
Leaves. Color - Yellow
1y ago
3
4
Solved
ItalyGrow
Yellow tipsDont know why but one of the girls is suffering from stress. I think this is the cause for the yellow tips or do you have a other opinion? I did LTS training every two to three days, maybe therefore?
A other reason could be light burn. But with a distance of 50cm I dont think soWeek 4
Leaves. Color - Yellow
6y ago
2
4
Solved
TheNextGanjaMan
Can I use magnesium sulfate foliarly?Hello, this plant is at the beginning of flowering and apparently has a magnesium deficiency, right? Can I use 100% Mag Sulfate from the pharmacy via foliar treatment? I'm using Calmag 2ml/L but it's not having any effect.
I should add Dolomite Limestone to the soil this week.2y ago
3
Solved
BruceBlack
Humidity lowIm having issues whith humidity during the day and it drops down to 30% sometimes.
I already have a pot inside with water and a towel next to the light
I have air intraction using a fan outside the tent next to the window which keeps the temp on 24 celcius
Thanks6y ago
4
3
Solved
Bigbugs1
Help meI 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 calciuLeaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
3