Check the winners 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
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Potassium Deficiency
The42
started grow question 5y ago
Is this potassium deficiency?
Open
Leaves. Edges burnt
likes
Answer
Chitown_grower
answered grow question 5y ago
I think she's just ready for some food. Probably hungry
likes
Complain
Fruitgrower
answered grow question 5y ago
I would doubt it at this stage of growth. Other reasons could be light or heat stress or ph in balanced
likes
Complain
Organoman
answered grow question 5y ago
To me it looks like potassium excess, not a deficiency of any sort. Decent soil will still have ample nutrients for baby seedlings, and at this age.
likes
Complain
Mikewithgreenthumbs420
answered grow question 5y ago
https://www.growweedeasy.com/cannabis-symptoms-pictures looks like potassium deficiency this site will have all needs for plant problems hope this helps
likes
Complain
Similar Grow Questions
Solved
weedacouple
Gorilla Cookies Auto (and others) Burned leaves
The plant started to have the edge of the leaves yellow, looks like its starting to burn, but im not sure. This is happining to the others 2 plants im growing rn too. They are at the 5° week from seed, 1° week in flowering, using biobizz products at 75% of what datasheet suggest
Leaves. Edges burnt
3y ago
2
4
Solved
donnythechef
Is this light burn?
Is this light burn? If not what is it? It's under a Phillips 13w household led 2700k bulb, it's not the only affected area but it's the most affected and the closest to the bulb. I plan to add more but don't want the issue to accelerate. Thanks in advance!
Week 10
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
1
1
Solved
theboyrenzoo
training
I need honest criticism and help on training my plant to help and get the most out of her & also help with nutrients and if I’m using too much or too little & how to start fixing it. thank you
Week 10
Leaves. Edges burnt
6y ago
1
1
Solved
NightsAssassian
Please Help !!!
The leaves on one of my plants are getting brown spots and i dont know how to fix this issue. Plant just went into flower and then this happened. Please help
Week 5
Leaves. Edges burnt
Leaves. Tips - Burnt
6y ago
3
4
Solved
Smokin_Joe
Discoloration and Spots
I'm still not sure if this is a deficiency or some sort of burn. It's definitely spreading a bit more, and I'm unsure if there's time left to address it in the grow. Video of full plant in week.
Week 18
Leaves. Edges burnt
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
6y ago
2
2
Solved
JARhead907
Is this a magnesium sulfate deficiency? Or light/ nutrient burn?
Not sure what exactly is happening 🤔 anyone got any ideas love to hear suggestions!
Week 8
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Color - Yellow
1y ago
2
Solved
Jo3108
Imali razloga za brigu radi ovih flekica ? I nekako na ova dva sastrane lista koda su vrhovi potamnili?
Leaves. Edges burnt
Leaves. Color - Dark-brown
4y ago
1
4
Solved
MiyamotoMusashi
Light nutrient burn
Hello growers, can you confirm tha this is a light nute burn?
Leaves. Edges burnt
Leaves. Tips - Burnt
5y ago
1
2
Solved
GrowKluk
Slečny a kroucení listů
70 / 5000 Výsledky překladu one clone has this deficit. can anyone advise what could it be please?
Week 5
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Mottling
5y ago
1
1
Solved
FourVentiFarms
Burned leaves edges
Edges of leaves burned, they dry and crumble. Reasons?
Week 4
Leaves. Edges burnt
4y ago
1
2
Solved
xXMoraisXx
Leafs problem
Hi guys im really worried the plant doesnt seem to be on good path. Can somoene help me ? I dont know if it is because i start aplying nutrients or the Lack of it. Or maybe the low amount of water. Nutrients Biobizz Fishmix 1,5ml/l Topmax 1,5ml/l
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
3
5
Solved
FatnastyzBudz
P lockout mid flower coco ph drop
Midflower lockout P starts, cal/mag is in line up. Week 3-4 runoff ph drops 5.2-5.3 then P. I follow success feed chart. Adjust feed to match intake but salts starting to stack and lockout. I have added add cal/mag. Maybe too dry, but still happens. Last feed 1050 still stackd
Leaves. Edges burnt
9mo ago
3
2
Solved
Eddjack
Deficiency?
Non riesco a capire se è una carenza o una bruciatura da luce, secondo voi? Cosa potrebbe essere ? Appare soprattutto sulle foglie a ventaglio....
Leaves. Edges burnt
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
5y ago
2
2
Solved
420Hydro
Leaf issue
Not Sure whats going on with leafs...They start out yellow on edges and get worse always seems happen late flower...was thinking maybe lacking cal-mag..It's not a ph issue...Might try to up cal mag ...not 100% sure what it is if anyone has any ideas please leave in comment (would
Week 16
Leaves. Edges burnt
6y ago
4
2
Solved
MagicMan
Deficiency issue??
I'm having an issue with some type of deficiency it seems. Started with older lower fan leaves going yellowing and turning brown andveventually crisping on the tips and the leaf dies and falls off. Has moved up to newer fsn leaves. My thoufhts are Magnesium deficiency..ph 6.5
Week 15
Leaves. Edges burnt
6y ago
1
2
Solved
EmeraldGrows
Leaf issues with 3 Pineapple Express Autos - is it burn or deficiency?
All 3 plants are having issues to the lower leaves. They are dried and brown blotches, brown edges of the leaves, leaves drooping off and curling down and brown. They switched to Canna Terra Flora two weeks ago - is this a over feed or deficiency?
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Greenleaves1980
Pineapple auto in soil
I have not made a diary yet, this is my first grow and wanted to get a first run under my belt before posting. I'm 6 weeks in on a pineapple express auto grow and my leaf colour is starting to worry me. Can someone take a look and let me know if I have an issue?
Leaves. Edges burnt
5y ago
1
1
Solved
BadMonkey
Got some minor leaf burn this week. Only a couple leaves, I thought it might have been from being manhandled during the LST training, but not sure. What do it look like to you?
Week 7
Leaves. Edges burnt
7y ago
2
2
Solved
Blabina
Young quick seems to have issues
Young quickblue seems to have issues. What happen ?
Week 1
Leaves. Edges burnt
5y ago
13
7
Solved
MomoCookie
Hey The leaves have brown dots, burned tips and curl down what can it be? Thanks for your help Soil ph 6.5 Water pH 6 Temp day 23°c Temp night 19-20°c Nuts: Biobizz Bloom 4ml/l Biobizz Top Max 4ml/l Biobizz Calmag 0.8ml/l Biobizz Root Juice 1 ml/l CANNA Tera Vega 1ml/l
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Curl down
5y ago
4