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
Can anyone tell me what that is?
StDeacon
started grow question 5y ago
Hi folks, can any of you tell me what kind of problem she has?
Solved
Leaves. Color - Dark-brown
likes
Mr_Weeds_Autos
answered grow question 5y ago
It's the beginning stages of a calcium deficiency, my friend.
likes
Complain
Selected By The Grower
Similar Grow Questions
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
TopNotchBud
Diagnose my plant :)
Is this a Calcium deficiency? I neglected her for a few days but time to solve it now
Leaves. Color - Dark-brown
5y ago
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
2y ago
4
3
Solved
Flex1
Thankfully not my plant but what do you think this deficiency is? My first thought was actually that one plant fungus r something that causes brown circle like spots. This is the top of the plant. No curling to leaves.
Leaves. Color - Dark-brown
4y ago
2
Solved
phelice
Leafseptoria, ore something else!?
Is this Leaf-Septoria? Had the small spots since a few days (looks like they don´t get really bigger) but some leafs start to die like picture 2. looks to me a bit like calcium-deficit, or i´m i wrong?
Leaves. Color - Dark-brown
Leaves. Color - Mottling
1y ago
4
4
Solved
Jake13255
What is this deficiency?
They started off with some brown spots and progressed. Is this phosphorus? I have been feeding with .5-1ml of dyna grow bloom and 2ml of cal mag per gallon watering at about 6.3-4 ph. But i recalibrated my ph pen and did one water since.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
4
Solved
meangreenmachine
Spider mites?
What do you think the problem with leafs are during my week 4? I have noticed the there was discoloration on some levels and somewhat looks like someone might be eating from underneath of the leafs.
Week 4
Leaves. Color - Dark-brown
4y ago
1
2
Solved
KyCowBoy
Coco grow-brown spots forming
Coco grow and brown spots are forming. Im watering with dechlorinated tap water, every other day roughly about a litre. Ph between 5.8 and 6.2. I was wondering if anyone could help me identify the issue. The Ppm is 200-300, Coco mixed with gia green all purpose and worm castings
Week 5
Leaves. Color - Dark-brown
4y ago
2
3
Solved
einamio
Weed doctors to the rescue
Day 44, fb auto, my happy girl developed those dark spots at the top... Is this a Calmag deficiency? Although I'm giving her calmag every feeding. I think there are also first burnt tips. I'm about to water her tonight, what should or should not give her? Thanks for your inputs🙏
Week 5
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
1y ago
3
5
Solved
Ravenouside
El problema de manchas café sigue igual le baje los fertilizantes a 1/2 dosis según semana después de 1 semana de solo agua embotellada. El PH de la solución generalmente es de 6,3-6,5, aparentemente la cola central está más gorda pero me es difícil notar la diferencia,
Week 7
Leaves. Color - Dark-brown
7y ago
1
1
Solved
lovely_neighbours
Crispy brown leaves
northern light is showing yellow and brown leaves at the top and the bottom of the plant. These leaves are thin and crispy like if they are about to fall off. I am watering it 2 to 3 times per week and started adding a bit of cal mag last week when they started showing brown dots
Week 6
Leaves. Color - Dark-brown
4y ago
8
6
Solved
GreenLiving
Browning on the leaves?
I am worried about the leaf colour I feel like it’s slightly browned on the tips. Interested on what others that know what they’re looking at more than me think. Good chance I’m being over protective. I appreciate you.
Leaves. Color - Dark-brown
4y ago
9
7
Solved
HecticJardin
Brown patches on leaves
Noticed these marks on the leaves of the plant I've had problems with. Any ideas what they could be? The other two are smelly amazing and the single plant is so sticky! I think it might be the cheesecake but I'm really not sure, I won't make the mistake of mixing them up again
Week 7
Leaves. Color - Dark-brown
5y ago
1
2
Solved
420keef
My leafs turn yellow very fast sometimes with dark almost black spots on them is that normal? And what can i do about it?
Week 11
Leaves. Color - Dark-brown
8y ago
3
3
Solved
MarijuanaMiyagi
Is this Tobbaco Mosiac Virus?!?!
Is this TMV? It has 6.5 ph in and temps remained within normal parameters. Had thrips infest. Mostly gone no real new activity but I think I got Tobacco Mosiac Virus. Never seen it myself before just wondering if I am correct.
Week 7
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
Leaves. Other
4y ago
3
3
Solved
Indica_Jones
Purpel oder mengel ?
Prupeln meine Goriilla Zkittlez oder ist das ein Mangel oder Problem ?
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
2
2
Solved
BeachGanja
Calcium Issue?
Hey everyone, got some limited leaf issues on the older growth. Appears to be a calcium deficiency, but would like your thoughts. 😎
Week 5
Leaves. Color - Dark-brown
5y ago
2
3
Solved
dillande3
Looks like the leaves are rusting, Bronze colours comming from the middle and get a more rusty look and then dying
Hello it looks like the leaves are rusting, Bronze colours comming from the middle and get a more rusty look and then dying eventually Pls let me know what need to be done, I am using Organic Living soil method and water only way, Its now Day 35 Flower Phase, PGK, in 5-gallon TC
Week 4
Leaves. Too few
Leaves. Dropping off
Leaves. Color - Dark-brown
3y ago
3
3
Solved
Positive420
What's wrong white my plant?
4 days days ago everything was great, but now the plant does not look very good, what could be the problem.
Leaves. Color - Dark-brown
4y ago
6
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
4y ago
4
3