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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
Mokorelsare1
Deficiency or toxicity?
Hello i'm not sure what's going on, is this toxicity or deficiency? She loojs happy overall but new leaves have weird color, curled down tips, some of em are yellow and some are brow - burned.. maybe it's because she's transforming into bloom phase, PH 6.2 but runoff is PH 7.1.
Week 4
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
3y ago
5
2
Solved
Greeny1612
Suddenly, massive problems. Tried a lot already, nothing helped yet. Any ideas what I'm missing?
Hey guys, I've been growing for a few years now and something like this has never happened to me. Long story short, as soon as I move my plants from the veggie box into the flower box, they slowly start showing these symptoms (see pictures). The box worked fine for several grows
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
2y ago
7
3
Solved
aDriftwoodKing
Yellow leaf with brown spots?
Plant has only 1 leaf like this, and the opposite fan leaf appears normal. Another plant has a similar leaf like this but with less spots, and one yellow or bleach spot. But only 1 leaf on each plant. My latest diary entry has more info, any help appreciated.
Week 4
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
3y ago
6
5
Solved
6ix6ix6ix
(Mimosa auto in coco) Yellowing tips on new growth
The top of the plant (new growth) is showing some unhealthy signs. The tips of the leaves are yellow and there are lighter green stripes on the leaves themselves. I googled and the signs match to a number of deficiencies, but i lack the experience to diagnose correctly. Plz help
Week 5
Leaves. Tips · Burnt
Leaves. Color · Yellow
4y ago
2
3
Solved
SmokeBigBuds
Potassium deficiency?
Possible potassium deficiency? I usually get burnt tips but these are starting to yellow down the sides too.
Week 7
Leaves. Tips · Burnt
Leaves. Color · Yellow
4y ago
3
3
Solved
Nautilus
Last question, i should cut it off right now correct? The plant look like is dead in my opinion theres nothing that can save them, how i can avoid any type of mold in the nug? Im really scared about what happened last night to my 2/4 plants... today i turn immediatly the lamp off
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
1
Solved
Popeofdope
Too much nitrogen?
How do i fix a plant having nitrogen? Ive been flushing them for a couple days but nothing.
Week 8
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
6y ago
1
4
Solved
MasterOfNone
Does anyone know what this is? Just before this happened the leafs were cupping upward. She’s in coco coir and perlite. I feed her biobizz grow 3ml/l and biobizz heaven 4ml/l and cal mag 1ml/l and ph the water to 6.3 about 6-7 weeks into veg and this is the first problem I’ve had
Leaves. Tips · Burnt
Leaves. Curl up
Leaves. Color · Yellow
6y ago
1
4
Solved
Sigman
my plant is still good ??
what wrong with my plant? what nutrients i need to give them? 2 plant at 70 days DWC and soil ph nutreint solution 7 ppm 500 , EC 1060 us/cm ph in reservoir DWC 6.0 ppm 450 , EC 950 us/cm
… Show more
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Chemical composition
4y ago
2
2
Solved
jokgga
Nutrient Lockout or Nitrogen deficiency (i.e need more nutes) or Fungus (see stems)
My leaves are yellow but some are turning green. Do they need more nutrients or lockout? I have not gone above 1EC but have seen both strains handling 1.5EC+ in other diaries. All three plants are drinking the water in trays. Res/Tray@ 6.0PH/653PPM. Coco slurry @6PH/500PPM
Week 8
Leaves. Tips · Burnt
Leaves. Color · Yellow
Other. Mold
6y ago
2
4
Solved
LegalGrowMyOwn
far too Lightburn/stressed
Hey gromies🤓 If got a big problem with my Mars hydro tws2000, its too powerfull for my ladys
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
2y ago
3
6
Solved
ffgrove
fan leaves turning yellow and dying
Why are the big fan leaves all turning yellow and dying?
Week 15
Leaves. Tips · Burnt
Leaves. Dropping off
Leaves. Color · Yellow
5y ago
4
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
lladnekekrub
Deficiency?
I laid off the nutrients last week after some concern that I was overfeeding, but I think that resulted in a deficiency. (Some of the darker colors might be related to the strain? 🤔) The third picture was taken 12 hours prior to the first two, so it progressed quickly overnight
Week 10
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
1
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
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
6y ago
5
6
Solved
Leanleanwok
OD
Nitrogen overdose? Ph 6.2-6.5 Biobiz grow/heaven/top max
Leaves. Tips · Burnt
Leaves. Color · Yellow
Plant. Other
4y ago
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
Abadakor53
Still burning
She is still burning as i took her further away from light source
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
1
Solved
stoner_doom
Please help to identify deficiency / excess???
7 weeks, autoflower, soil + perlite, giving water with RQS Easy Bloom (half a tablet per 3 liters), pH of the watering mixture is 6.5. The bottom leaves on one of the plants are turning yellow (starting from the tips) and slowly dying , while the top leaves tips look very burnt.
Week 7
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
2y ago
9
3