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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 😍, good luck 👍
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
Complain
Similar Grow Questions
Solved
Dupo_1
Yellow spots, drying leaves HELP
Please help! Iv just returned home from three days in hospital and this has happened to my plant. The soil did not get two dry or to hot. I don't know what is happening. Its only present on the third node both sides
Week 4
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
6y ago
1
1
Solved
Lotigreen
Light streets? Or nutrient burn?
Hey, could this be stress from the lights? It starts at the top and barely shows at the bottom. The leaves are turning yellow from the tips towards the center. Especially at the top. It's under a 200w lamp.
Leaves. Tips · Burnt
Leaves. Color · Yellow
2y ago
1
3
Solved
WeedTheNorth
Yellowing
Yellowing of leaves
Leaves. Tips · Burnt
Leaves. Color · Yellow
6y ago
6
4
Solved
BavarianBarbarian
Week 8 (4 weeks into flowering) - Possible Nitrogen / Cal-Mag issue?
Plants show signs of what i assume to be a deficiency. Stopped feeding nitrogen Week 7 according to schedule. Symptoms are not on every leaf but some the upper foliage. Yellowing, burnt tips and rusty spots. My guess is lack of Cal-Mag & Nitrogen. Is my guess correct?
Leaves. Tips · Burnt
Leaves. Curl up
Leaves. Color · Yellow
2y ago
3
3
Solved
Leonard_Lunte
Light or nutrient burn?
Ive been having yellow tips on the tops of both my plants for some time now, I already raised the light up a bit higher than the maximum height the manufacturer recommends, but Im still having the yellow tops. Could this be nutrient instead of light burn?
Week 4
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Other
6y ago
2
2
Solved
Miller6610
Heading into about 3rd week of flowering and seeing some yellowing
About 3rd week of flowering but I have been seeing yellowing leaf tips starting on top newest growth first and now seems like I'm having older larger leaves yellowing and burning now. Not sure if this is lockout or a deficiency or something else?
Leaves. Tips · Burnt
Leaves. Color · Yellow
1y ago
1
Solved
GermanGuerilla420
Lockout or not enough nuts
the plant gets yelloish with brown spots ant brown leave tips i checked the ph an how ever it was about 4.8... i flushed the soil to a ph of about 5.2 and gave her a little feeding. Temps between 23 and 26 c°, the light is very close.. might be to close Its a Autoflower
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
2
2
Solved
Smeags
pH flux? Nute deficiency?
Problems... Diary and question the same. There are def burnt tips everywhere and the leaf fans are going from the bottom up. What should be my next step in fixing the problem and if it's going to affect yeild?
Week 7
Leaves. Tips · Burnt
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
3
3
Solved
sndwich
Burnt Leaves?
Heat or nute burn? Haven't changed any feed etc but since the great 'heat' this is happening, any ideas? D
Week 8
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
6y ago
3
3
Solved
supermegadjj
Situation getting worse. GGrowth almost stopped, leaves growing very thin and small. What am I doing wrong ..? Not the first time this happened. Thanks!
I've posted a day or two ago question about this girl as she slowed down growth and drooped+small leaves +red leaf stem. Today I can see lower growth starting to loose colour and there are some brown spots on new growth... i will flush her today. 3rd photo lower growth
Leaves. Tips · Burnt
Leaves. Color · Yellow
Plant. Stem · Red or purple
6y ago
1
2
Solved
TheSlimeGrows
burnt tips/yellowing
My GG4 Auto has burnt tips and some yellowing on leaves. Just came back from a week and a half trip and RH was 35% and plants were pretty under watered. Is this nute burn? or from underwatering
Leaves. Tips · Burnt
Leaves. Color · Yellow
6y ago
2
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
kush_dreams
Nute burn or something else?
My middle and top leaves are yellowing from the tip and edge inward, is this the nutrient burn or another issue altogether? Runoff PH was 5.9 and ppm was 700.
Week 13
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
3
2
Solved
torquesan
Need some help asap
What is wrong with her? :( I am assuming N Deficient, but I also have veeeeeeerryyyy lightly burnt tips so it is confusing to me. The lime-greening of the leaves makes me think N Deficient though.. Any thoughts? I have some new nutes on the way should be getting here tonight too.
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Deficiencies
4y ago
3
5
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
Wackytabacky_420
Anyone know what's wrong with my girl?
Can anyone tell me if this is going to effect my flowers? Should I cut these leaves out? What can I do to correct it? I left a pretty good description in week 7 of the battle with this plant.
Week 7
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
2
2
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
Solved
towellie
Tips turning into yellow
We started feeding the plants 10 days ago. Some leave tips started to turn yellow, we think is due nutrient burn. We decided to water them without ferts for once, to flush out the excess nutrients. Is it a good approach? Could it be from light stress? (See pic for reference)
Week 3
Leaves. Tips · Burnt
Leaves. Color · Yellow
4y 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
deepsheeba
What the heck is wrong with this plant ?!
What's is lacking now? . I flushed it yesterday but the leaves seem worst
Week 9
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
1
2