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
KnightRider
My plant has mass nutrient burn on most of the leaves, I've flushed the roots. Is there anything else that can be done to help recovery or is it to late in flower. Also should I remove all the effected leaves or will they still convert energy for the plant? Thanks
Week 13
Leaves. Edges burnt
7y ago
6
3
Solved
Horvi
Lightburn?
Can you please help me identify what Is wrong? I grow under led lights.
Leaves. Edges burnt
Leaves. Tips - Burnt
4y ago
4
3
Solved
UnorthadoxDude
Is this heat stress?
Hello growmies, unfortunately Queen Citronella has taken ill. I think it is heat stress, but I wanted a second opinion so here I am.
Week 9
Leaves. Edges burnt
3y ago
19
11
Solved
sashagrow
Brown spot on leaves
I'm experincing a bad situation. Leaves are becoming brown in the margins and I can't understant exactly the cause. Probably there are more causes, some phosphorus deficiency caused by low temperature but I'm not sure that's the only diagnosis. Someone could help me?
Week 14
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
6y ago
2
2
Solved
BadGrower
Deficiency or overload? Any help appreciated
3 plants in question here. Minor burning on one of them? The other 2 younger ones have the bigger fan leafs turning slightly yellow. Some weird scarring noted too. Using dry amendments (earth dust, dolomitic lime). Soil, haze, 6.8 PH of filtered water.
Leaves. Edges burnt
Leaves. Color - Yellow
5y ago
1
Solved
backchecker1
Deficiency?
OK so my plants are in week 6 to 7 of flower. I'm seeing what I thought was a potassium deficiency. The nutrient line that I am using is Remo Nutrients. I added an extra bit of Astro Flower (which has the most amount of "K" in it) to the last couple of watering top ups. DWC.
Week 12
Leaves. Edges burnt
5y ago
4
4
Solved
420SNoWfLaKe420
What’s wrong with her???
What is this some deficiency or something this plant has seemed sickly her whole Life and her same strain sister looks lovely
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
6y ago
4
7
Solved
Stolas2
Canoeing leaves and burnt ends
Canoeing and burnt tips of leaves. Temperature usually between 27 tp 29 degrees. Quite low humidity says 10% but not sure this is correct. Veg stage week 3 Any help greatly appreciated.
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl up
5y ago
3
Solved
southerngrower2020
Leaf damage and flower analysis
Asking for thoughts on leaf damage. I think there may be nutrient shock so I will be reducing PPM to 800 to see if that helps. I am confused by other problems seen on a few leaves. I also want to ask if I am getting close to harvest (check flower pics) since this is an autoflower
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Other
6y ago
4
3
Solved
Tkultranewb
Hey all I just wanted a honest opinion of what my grow in this stage is looking like is it on track and are they the right size or should i let them stretch some for bigger taller or was keeping them short and trying to get them bushy short in veg right idk just honest opinions
Week 2
Leaves. Edges burnt
7y ago
1
1
Solved
Marlboro
Передозировка или свет?
Подскажите правильно ли я идентифицировал передозировку удобрениями. Не думал, что органические удобрения могут так навредить быстро растению. Света даю им 550м/моль/см2. Но вот решил дать полторы дозы удобрений, так как заметил легкое осветление листы в середине куста.
Week 8
Leaves. Edges burnt
3y ago
2
3
Solved
HYDROBEAT
Bruciatura da luce o fertilizzante ? (Dwc)
HELP! Vorrei risolvere e trovare una spiegazione valida per queste foglie che stanno bruciando, principalmente sulla cola principale quindi quella più esposta alla luce". Ho anche aggiunto una dose di nutrienti essendo l'ultima settimana di bloom.Qualcuno ha qualche idea💡?Grazie
Week 11
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
6y ago
4
6
Solved
Bimbadabang
Discoloration and burnt edges on leaves
Can someone please help me diagnose this problem? At first I thought it was root dry spots from the drip watering system but it’s gotten worse. The bottom leaves are yellowing and the edges are burnt with a hole in one of the leaves. Anything helps, thanks!
Leaves. Edges burnt
Leaves. Color - Yellow
6y ago
1
2
Solved
Yayayatoure
Red spots on leaves
What are these can someone tell me how to fix these.and she is kinda droopy
Week 7
Leaves. Edges burnt
Other. Other
6y ago
1
2
Solved
SuperGreenGoblin
Curl and clawing,N-Toxicity?Flushing?
Hello Growers! Last week I gave around 1ml/L BioGrow in 600ml water. Now all leaves seem to me dark green. Some are disformed/wavey and show burned leave edges and slighty burned Tipps. Two of them seem to be handling the high nitrogen. But the third is curling/clawing. Wdyt?
Week 4
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl down
2y ago
11
4
Solved
Cannanna
Was ist los ? Magnesium mangel oder Stickstoff..Hilfe
Hey Leute, Ich weiß nicht was los ist. Meine Damen sind irgendwie traurig. Vor 14 Tagen wurden sie umgetopft und haben jetzt 2 Mal Dünger erhalten. Davor 10 Tage lang ph eingestelltes Wasser. Dünger ist Canna Terra und gegeben wird 3 ml auf einen Liter Wasser plus CalMag.
Leaves. Edges burnt
Leaves. Tips - Burnt
1y ago
2
1
Solved
bigdaddyjay73
Leaf problems.
In the last couple days, the plant that has been doing the best is now having some dried out, crumbly leaf tips. It is not undewatered. Has it just got through all the nutrients in the soil? The roots are very healthy.
Week 4
Leaves. Edges burnt
6y ago
4
4
Solved
TheSecretLab
we have this Gelato 33 plants on their 1st weed of planting on 40L Pots, it looks like yhe plants are stressing by my Point of View , the temp in the room is 29° and night 16°. They have been 1 week 24h light schedule and now we just made it 18/6h . Would need some help on it.
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
2y ago
2
Solved
Wackytabacky_420
Anyone know what's wrong with my girl?
Can anyone tell me if this is going to effect my flowers? Should I cut these leaves out? What can I do to correct it? I left a pretty good description in week 7 of the battle with this plant.
Week 7
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
2
2
Solved
Niki063
What do you think about cc 1? Maybe excess of cal mag? I've been using osmosis watter plus sensi cal-mag until 0.3/0.4 ec
Week 5
Leaves. Edges burnt
7y ago
2
2