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Back to Grow Questions
Potassium deficiency?
SmokeBigBuds
started grow question 4y ago
Possible potassium deficiency? I usually get burnt tips but these are starting to yellow down the sides too.
Solved
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
likes
PEACEMAKER
answered grow question 4y ago
She's beautiful looking like a lil calcium Deficiency that's all but she's beautiful π, good luck π
1 like
Complain
Selected By The Grower
ChitownCannaChica
answered grow question 4y ago
Looks like nutrient burn
1 like
Complain
Disn00f
answered grow question 4y ago
Looks like it needs a little more K. Looking good.
1 like
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Similar Grow Questions
Solved
mangojuus
Yellowing leaves
What kind of deficiency is this? I can get a sack of coffeeground and add it if nitrogen is the cause
Week 6
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
6
Solved
HakunaMatata
Yellowing on leaves tips. Should I start feeding her?
Some yellowing appeared on the leaves this last day. Temps and humidity are controlled and ok. I haven't been feeding her, she has been growing on light mix for the past 25 days. Im thinking its time to start applying some nutes. Or could be something else? Thanks!
Week 3
Leaves. Tips - Burnt
Leaves. Color - Yellow
3y ago
3
3
Solved
BLAZED
Older leaves are yellowing, brown/red rusty spots, dying tissue, red stems.
Older leaves have brown/red rusty spots and looks like dying tissue in between the veins. Burnt tips, and yellowing leaves. The soil was really dry and my PH meter was 0.4 too high. I gave each plant 3L of water with EC: 0.0 PH: 6.4 to check runoff. Runoff was PH: 6.1 EC: 0.8
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
3y ago
3
2
Solved
Growerxm00
Yellow tips
Hey, having some yellow tips light isnβt too close to the plants what can it be? And itβs just on one plant
Week 3
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Other
2y ago
7
5
Solved
ezgrows4anoob
Issues with leaves. Day 90 total, 30 of flower. Leaves have been getting more and more yellow the past week, with progressively more brown tips.
Vpd has been pretty close to ideal, the pot had 1 gallon less soil so could be missing out on some nutrients? Possibly Potassium? Otherwise not sure what it could be. Does not appear to be N deficiency because the leaves are affected from the top too. What should I do to fix this
Week 12
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
1
2
Solved
mapfrog
Week 7 Burnt Leaves?
You can see in week 7 that the right plant has some underdeveloped/burnt leaves and yellowing towards the top. Does this look more like light burn or a nutrient problem? I fed with Root's Bloom at the beginning of flower.
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
4
4
Solved
stonedJesus
Please help. Last plant died exactly like this. Yellowing drying leaves from the bottom on all fan leaves while shoots get stunted / eventually affected.
Transp recently from 1g > 5g. Seemed ok at first day after (no wat) then leaves started rapidly yellowing / drooping. Tent is fairly small 40x40x120. Could it be the heat ? Also took out humidifier but still in same room tent vents. Is Canna Pro Plus watered between 5.8-6.2 ph ?
Week 5
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
6y ago
5
8
Solved
GenghiSkunk
Hello guys! Overall the plant looks light green/yellowish and pretty small, with short internodes and bottom leaves with burnt and curled up tips. I give water every 3/4 days and commonly suggested fertilzers quantities. How can I let her recover and get bigger? Thanks :)
Week 4
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Spaces between nodes
7y ago
3
2
Solved
MiyamotoMusashi
Yellow leaves
Hello growers, two plants of mine has this kind of yellow leaves in the underlying part of the plant.do you know what's the cause and some solution?even the upper plants has some burn.
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
2
Solved
donnythechef
Is this light burn?
Is this light burn? If not what is it? It's under a Phillips 13w household led 2700k bulb, it's not the only affected area but it's the most affected and the closest to the bulb. I plan to add more but don't want the issue to accelerate. Thanks in advance!
Week 10
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
1
1
Solved
Anorak
Tips burning, brown spots
Hello growers! I have White Widow in the 5th week of flowering. Only top leaves are affected, some of them are turning pale yellow. Feeding her with NPK:18-12-18 and Cal-Mag. The brown spots are my biggest concern. THANK YOU!!
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
1
3
Solved
SupportiveMango
What do these yellow markings on the leave tips mean?
What do these yellow tips on the leaves mean? Are my lights to close? Looks like light burn to me and have adjusted the lights up 10cm for now. Still wanted to make sure since I thought they need more lights during flower. Thanks heaps
Week 6
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
2
2
Solved
Namesnomnom
Upward curling leafs, burned tips, 2nd week of flower
So I'm two weeks into flower now and my leaves are getting burned tips (I'm guessing nitrogen deficiency due to the light green of the leaves or some lock out) leafs are also curling upwards :/. And some fading on some lower leafs. Using biobizz roughly 10ml each Any ideas
Leaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
2
Solved
Mackorodoo
Holes yellowing and deformities
What is goin on here at first. I thought may e a cal mag but now stems are purpleing leaf tips are yellowing/burning and there are tons of small holes forming inside the plant leaves please help!!!! Lots of curling on new growth no evidence of bugs have been checking daily
Leaves. Tips - Burnt
Leaves. Color - Yellow
Other. Other
5y ago
2
Solved
crazy_zucc
burnt tips and yellow withering leaves.
about a week ago my two plants have been showing some problems, i could see this in the way some of their leaves started to have some some burnt tips on the leaves and some started to get yellow, its not really too many of them just a few but im concerned it could get worse.
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
3
4
Solved
Dbkoop
Mg deficiencies? RDWC
I have a Lemon auto RDWC and Blue dream auto in ffof mix. Both are showing some deficiencies or something no. Both have dark green veins and have like a gradient effect where it gets lime green to yellow inside outwards and a few burnt tips. Any advice?
Leaves. Tips - Burnt
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
3
Solved
MomoCookie
What to do?
What would u do? I overwatered her badly and since that her leaves ok pretty much all yellowish. Should I continue with her or start a new? I also a lot of foxtailing going on. I know ultimately it is up to me but I want to read your opinion π
Buds. Not fattening
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
1
Solved
JuanHaze_Arg
help! my plant is turning pale. the green color is losing.
the green color is losing. some leaves burn from the tip to the stem of the leaf. Excess fertilizers (because I fertilized the soil) or deficiencies due to few nutrients? I also thought that it can burn with nearby lights, but the ones that burn are far away
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
5
2
Solved
WeedBerry
Please help
Hi is this a ph lockout or nutrient deficiency any help
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
6y ago
4
Solved
PootPoot
Surplus or deficiency?
Can't tell if there's a surplus of nutrients or a shortage of potassium? One plant looks like nitrogen burn and the other two look like theyre maybe a little k deficient. Was thinking of chilling out on the feed on the burnt one and just feeding micro to the other two. Thoughts?
Week 7
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
2y ago
7
4