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Back to Grow Questions
Is this Potassium deficiency?
Seratram
started grow question 5y 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 5y ago
Yes
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Complain
GrowMirco
answered grow question 5y 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
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
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Machamp
First time grower: Should i defoliate? If yes, where should i cut it? I fear to do something bad.
How to defoliate/should i defoliate my Wedding Cake Auto and Godzilla cookies auto? Some leafs of my Wedding Cake auto are getting yellowish, as you can see in the picture My Wedding Cake Auto is too close to the LED (she is too tall). What should i do?
Week 5
Leaves. Color - Yellow
Other. General questions
Techniques. Defoliation
4mo ago
20
7
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GEESTGROW
Yellowish color at the tips and wrinkles
My plant has been yellowing for a day now, I think it is a deficiency of some nutrient but I don't know what it could be, I have thought about buying NPK. At the same time, there are also a couple of leaves that have slightly wrinkled the tip and have been half lowered.
Leaves. Tips - Burnt
Leaves. Color - Yellow
7mo ago
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Erasmus
Thoughts, should I be concerned?
One of my plants is developing twisted and spotted leaves. Is it just to much nutrients or something more?
Week 2
Leaves. Twisted
Leaves. Color - Dark-brown
5y ago
1
2
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Jordan73
Phosphor mangel?
Phosphor Mangel? Habe 2 Blätter die so
Leaves. Color - Dark-brown
Feeding. Deficiences
2y ago
1
1
Solved
ZkGrow420
Fungus or Deficiency
Leaves turning yellow with dark brown spots? Im going to harvest these next week, just want to know whats up with it
Week 9
Leaves. Color - Dark-brown
5y ago
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Solved
KurtThePlantGuru
Is this a deficiency or burn?
I have 2 new, 2 week old seedlings in my grow room and the bottom first set of leaves is yellowing at the tips to like half way up. Their not as green as the new growth.
Leaves. Color - Yellow
1y ago
2
1
Solved
MRHERB
Fastbuds girl scout cookies, nit surebif it is nute burn or light stress
Hello errrbody just want to find out if anyone knows what this might be thank you.PH 5.9 and only feeding calmag
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
5
6
Solved
Samurai0627
Stop growing by giving too much water
Should I throw it away? Growth stopped due to too much water. It doesn't smell.
Buds. Other
Leaves. Color - Yellow
3y ago
1
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Galarihno
Leaves Curling Up & Brown Spots
The leaves started curling upwards, turned brown about 2mm at the top and a lot of small brown spots appeared on the leaves. I don't understand why or how... Im using BioBizz nutrients, little less than recommended. Watering every other day with 2L PH 6.3 20°C - 24°C
Leaves. Curl up
Leaves. Color - Dark-brown
1y ago
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koronkonko
What is this symptom? - Leaves
Hi Everyone! my girl is getting more and more yellow with brown dots/spots, starts symptoms one week ago. I gave her CalMag five days ago but is not better. Please, help. What is it? More photo in diary,
Week 8
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
1
2
Solved
6ix6ix6ix
Top new leaves yellowing and twisting.
My problem from the previous question is developing. The new leaves are yellowish and now they started twisting. PH is 5.8 in 6.0 out EC down from 2.0 to 1.75 the lower growth lack this problem, could be light burn? Was 20cm away (150w) Maybe its a deficiency i can’t understand
Week 5
Leaves. Twisted
Leaves. Color - Yellow
3y ago
5
7
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Bingeling
Yellowing leaves on bottom of plant, end of stretch to start of flower. Am i seeing a deficiency?
Hi GD, Im in week five and i started to notice some bottom leaves on my girls slowly turning yellow. Could this be due to them barely recieving any light? or starting defeciency? I am on the feed schedule in the pic, and watering with a ph of 6-6.3 (every 1-3 days, when dry)
Leaves. Color - Yellow
Setup. Strain - Autoflowering
3y ago
2
1
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kira90
leaves with brown spots
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Leaves. Color - Dark-brown
1y ago
1
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Leaves have brown spots
Any idea what these brown spots could be?
Leaves. Color - Dark-brown
4y ago
1
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GreenGoblin123
First time growing
Are these plants gonna power through? I made some changes since last diary entry. Lamp is now around 30 inches And just fed them clear RO water since last Monday. Should I still PH it? Thes plants are now 1.5 weeks old.
Leaves. Color - Yellow
Plant. Too short
Feeding. Schedule
5y ago
2
3
Solved
MBnVA
Deficiencies
Thoughts on any deficiencies?
Week 6
Leaves. Color - Yellow
4y ago
1
2
Solved
LKABudMan
Why is my WW seedling browning?
I have a White Widow seedling that is showing brown spots. I am not sure if the LED light was too close, or if it is showing nutrient deficiencies/excesses. pH=5.8, PPM=160 (80ppm in well water).
Week 1
Leaves. Color - Dark-brown
4y ago
2
Solved
Mortal_c
Yellow leaves
Hello everyone.My plants are in 5 week and yellow leaves and patches appeared a few days ago.Whats wrong with them? Also how do they look to you for 5 weeks.Thank you
Leaves. Color - Yellow
3y ago
1
Solved
AlexG
Nutrient deficiency. What is it lacking?
Can you guys help me figure out what my plant is lacking?
Week 4
Leaves. Veins - yellow between
Leaves. Color - Yellow
2y ago
3
3