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Back to Grow Questions
Is this Potassium deficiency?
Seratram
started grow question 6y ago
Some leaves started to turn yellow and there are some dark spots on others
Open
Leaves. Color · Yellow
Leaves. Color · Dark-brown
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Answer
Shockolateman08
answered grow question 6y ago
Yes
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Complain
GrowMirco
answered grow question 6y ago
Do you have any info on your set up? Whats your grow medium and nutrients being used?
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Similar Grow Questions
Solved
Jayvo
Is this a deficiency or light burn
Hi all my other plants are perfectly fine except for this one it has brown edges on the leaves and has been growing the slowest out of all my plants and I was just wondering how I could fix this? I checked the run off PPM yesterday and it was 1100 so I flushed it and now its 700
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
3
2
Solved
LeCuack
I don't know why it turned yellow, is this normal? The pH is fine too. I raised the light to prevent burning.
Week 8
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
2
Solved
KushManF
Leaves are yellowing
Leaves are going a yellow and brown colour. Not sure what is going on? Any advice?
Week 9
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
1
Solved
Peweez
Could someone help me to identify the issue my plant has?
This girl isn't looking healthy anymore and I need to figure out why. What I did: I topped her pretty early but she recovered well (you can see it in my grow diary). A week later I transplanted her from 0.5L pot to her final autopot 14L. After that she had a hard time recovering.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
2
3
Solved
Costosito
Hojas se amarillean o queman bordes
I've noticed for a few days that the leaves of the plant are turning yellow or looking like in the photo. I'm not sure if it could be some kind of deficiency or lack of nutrients since I haven't fed it more since the last time, and it's taken on a lighter color.
Week 14
Leaves. Tips · Die
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
2
Solved
ThcSrb
Spots on leaves and little twisted...
Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?
Week 3
Leaves. Twisted
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
5
Solved
TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?
Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn. The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.
Week 6
Leaves. Edges burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
1
Solved
Splifflicious
Yellow bottom leaves/brown spots on bottom leaves
Hi guys, So 4 or 5 bottom leaves of my 7thWeek autoflower looked like this and I ripped them off. Is that ok or did I harm her? Anyway, is that a Calcium def? Should I give her some CalMag? Could it be something else? Besides this, the general condition of the plant is good. Tx!
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Other
6y ago
3
Solved
Coconut_kiss
Rusting leaves since week 9
Affected leaves on top. Rusting leaves,some have purple stems,week 10 check out diary for more info also some bottom leaves have been dying off
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
1
2
Solved
Wildgrass
Leaves turning yellow with brown patches
I noticed the first real leaves on one of my plants turning yellow in FFOF. I transplanted them into bigger pots with ProMix M in hope that it would stop. Condition seems to continue worsening. I have started to notice the cotyledons on some of the plants turning yellow.
Week 4
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
2
Solved
pijnkman
As you can see, the first two plants look quite good while the last two leave something to be desired. The leaves on the back left are curling downward and
and yellowish at the tips (in places). What could be the reason? I ordered some epsom salt to try it out (sulphur). I grow in floragard proffesional growmix (grown in lightmix from biobizz) and have so far only “fertilized” with supervit, otherwise only pH-adjusted water. pls hlp
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Color · Dark-brown
1y ago
4
Solved
KINGT88
Leaves changing colors
Leaves are starting to curl down on one plant. Another plant the leaves are changing colors as shown in the video, what am I doing wrong? First time grower.
Week 4
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
1
5
Solved
Mekster
Week 5 Flower Brown Leaves
I’ve been dealing with this discoloration since veg. Does she need cal mag? Is this ph float I’m not catching?
Week 11
Leaves. Color · Yellow
Leaves. Color · Dark-brown
3y ago
6
Solved
Kripoulas
Deficiencies? Brown spots, yellowing and purple stems
What is this deficiency or maybe toxicity and whats the solution? She is fed with biobizz chart instructions but with every other watering. She is big so I'm guessing I should water with nutes every time? She showed this first week into flowering.
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Plant. Stem · Red or purple
6y ago
3
3
Solved
Wackytabacky_420
What wrong with her?
So my girl has an issue can someone give me a hand? Pineapple auto.
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
5
2
Solved
Dillsnills
Advice on what's going on with this plant some yellow and brown on the leaves
Looking for help to diagnose what's going on w this plant,did a mini flush ppm runoff 610 intake 345ppm, wk 7 flowering Girl Scout Cookie Auto GardenOfGreen, should I do a nute feeding next,FF chaching,big bud? Ph6.5. Advice input opinions greatly appreciated.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
1
Solved
Dday314
Calcium deficiency?
Hello Everyone. The Fan leaves at the top and Middle have brown spots, I use RO water and feed with Fox Farm Tiger Bloom..Everytime I feed or Water I have been adding 5 ml of Cal Mag Ph 6.4 feeds right at 900ppm . NL auto week 4 flower. Thanks in advance. Wash your hands 👍
Leaves. Color · Yellow
Leaves. Color · Dark-brown
7y ago
1
1
Solved
SmylinPupil
Brown yellow leaves?
Can anyone help me? I had this issue with my last early Miss and thought it was a cal mag deficiency. I tried to adjust it last time during flower but it didn’t help. I really only notice it on one of them so far but I would like to fix the problem sooner than later.
Week 8
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
2
Solved
Kluless
Yellow brown leaves
Amateur HELP Baby looking very unwell. week 3. Leaves yellow / brown. Normal soil led light 60cm water 1L a day with nutrients.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
1
Solved
Don1daz
Any ideas?
Anyone got any ideas what's going on here?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
4
5