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
Any idea what this could be from? Nute burn or def...
coloradohomegrower
started grow question 5y ago
Any idea what this could be from? Nute burn or deficiency?
Open
Leaves. Color - Dark-brown
likes
Answer
Bongkhan
answered grow question 5y ago
Hey mate . That looks like the starting of excess K. Just feed with plain ro water for twice feeds and it should not spread. Those leaves wont recover ; but there should not be any more of these after plain feed. Hope this helps.. happy growing..
likes
Complain
Similar Grow Questions
Solved
EirikBloodAxe
Stress or deficiency?
Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency? Northern lights auto, 8-9 weeks. Canna Coco Nutrients.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
grower_not_shower
What are these spots? I've tried every fix but nothing works.
https://imgur.com/a/smyIu86 What are these spots? I've tried Laser 2240 SC, Kumulus DF and Champ 77 WG and nothing works, the spots are still spreading.
Week 7
Leaves. Color - Dark-brown
3y ago
6
6
Solved
Weedsthebest
Does this look good haha 😊 There is a Little Brown spots on Done of the leaves not much
Week 7
Leaves. Color - Dark-brown
7y ago
1
1
Solved
Stigghiola
Salve ho allegato qui alcune foto di un paio di foglie potrebbe essere problema di umidità?
Week 12
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
3
3
Solved
AS420
Brown spot
On only one of my plants there is a brown spot which I have no idea where it can come from. I didn't give too much fertilizer and I regulate my ph between 6 and 6.5. Some idea?
Week 2
Leaves. Color - Dark-brown
3y ago
3
3
Solved
Granddaddy_Terp
What's causing my brown crispy leaves!?
Over the past week my plants have taken a turn for the worse. Many leaves went from yellowing to browning to completely crispy! Other leaves have brown spots on them and some of the stems are purple.
Week 8
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
8
Solved
happykat
Browning, curling of Green Crack leaves
Is this discoloration worrisome? Ph 6.1, adding 1tsp calmag to each gal, EC at 1.5. What's causing this browning? Seeing only on the Green Crack, mostly higher leaves, but some lower too. Does it need more or less of something? Leaves look "dirty".
Week 6
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
1
3
Solved
ArdoremArdorem
Is this anything to worry about?
Day 23. Noticed a few tips turning brown but plants look green and healthy, is this anything to worry about and will it effect my yield?
Leaves. Color - Dark-brown
4y ago
1
1
Solved
MarkWatney
Black spots?
Is this a deficiency, nutrient burn, or disease, growing in MG soil, recovering from overwatering as well.
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
1
1
Solved
Ikamulus
what is that?
these brown parts are mainly at the upper buds and the bud which are affected smell a little rotten. I checked for insects but there are none. Temperature is also normal as well as humidity. It only affects 1 of 4 plants.
Leaves. Color - Dark-brown
3y ago
1
1
Solved
Jonnytats
Please help!! What is this?!?
Please helpppp!!!! Anyone tell me what is going one here? My first grow and she already been through a lot trying to save her. Feminized white widow from crop kings around week three of veg but severly stunted growth from being pulled out by a dog three day ago
Leaves. Curl down
Leaves. Color - Dark-brown
Leaves. Other
4y ago
2
2
Solved
xhibo
light stress of seedling
Light stress (image of 28.5.): is it likely that my plant will recover?
Week 1
Leaves. Color - Dark-brown
1y ago
4
4
Solved
Wyregrasser
Hi everyone. I am rdwc w/4 plants near end of flower. This plant has always been unhealthy. However this is a new twist. As I said rdwc, other girl are groovy, so it is what it is but my question is; what is it? Genetics?
Week 16
Leaves. Color - Dark-brown
4y ago
8
5
Solved
phlstvns
brown/whitish spotting and cuts on leaves
Although she looks healthy I'm seeing some brown/whitish spotting this week and 2 little cuts on 2 leaves that I've no idea what could have caused them! Any idea or tips that could help? Thanks heaps!
Week 4
Leaves. Color - Pale
Leaves. Color - Dark-brown
5y ago
4
4
Solved
AS420
Dark brown leaves
Hi, I'm at the end of flowering, I have about a week left before harvest and on one of my plants the leaves are turning a dark brown color. Do you know where this could come from?
Week 12
Leaves. Color - Dark-brown
3y ago
4
3
Solved
Complicate
Is this turning purple from temp change
So it looks like what I thought was a brown spot (under the grow light), appears to be purple when I pulled it out to get a better look and stake it down. I did switch the light to something cooler, could this be from temp dropping. Not worried yet, just curious. Thanks
Week 4
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
6y ago
1
1
Solved
StDeacon
Can anyone tell me what that is?
Hi folks, can any of you tell me what kind of problem she has?
Leaves. Color - Dark-brown
5y ago
1
Solved
Efka710
Hey guys see week 13 day 90 last picture is it Mag toxicity or deficiency? I been watering with molasses 4ml every second watering
Week 13
Leaves. Color - Dark-brown
6y ago
1
2
Solved
TripleCcannabis
Havent found any help for the issue my little girls having.. browning and drooping. Leaves are still ridged but curling up. My heat was a bit high but iv fixed that. So now @ 24C and 65 RH 24hr lights. No nutrients yet but have a very dilute 1:1:1 of the GH trio mixture.. no help
Week 1
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
3
Solved
Don1daz
Leaf going brown
Is this a deficiency or a temp issue I'm at 79 during the day and drops to 65 at night the rest of the plant is fine apart from the bigger leaves
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Other. General questions
5y ago
2
2