Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Can anyone tell me what’s causing this
The8thChevronanswered grow question 4 years ago
Yep, it's either nute burn from to much P or K, or it's a Cal/Mag deficiency just starting. Check ppms of runoff. If they're good then add some calmag to the next feed and it should stop the spread.
It's also vaguely possible that those leaves are being cannibalized by the plant if they aren't getting any light, but that seems least likely to me. Good luck!
Similar Grow Questions
Solved
VeruZ
Blätter gelb und fallen ab Blütewoche 9Aktuell machen mir meine Pflanzen echt Sorgen, viele Blätter werden sehr schnell gelb und fallen von allein ab obwohl ich bei jedem gießen Dünge. Sollte ich noch mehr düngen und häufiger gießen? Die Buds sehen soweit gut aus nur sind bis jetzt immernoch mehr weiße Haare als BlüteLeaves. Dropping off
Leaves. Color - Yellow
7 months ago
7
3
Solved
PootPoot
Start on nutes?Should I start a low dose of nutrients? Looks a little yellow in the middle. Does it need a little more nitrogen?Week 2
Leaves. Color - Yellow
7 months ago
2
2
Solved
stupid
Potassium and Calcium deficiency?Both plants are autos on day 49 after sprouting.
Plants didn't get any fertilizer during veg. I noticed deficiencies about 2 weeks ago, and added BioBizz Bio-Bloom, Top-Max and CalMag to next waterings.
Planning to alternate water and feeding for the rest of the grow.
any adviceLeaves. Tips - Burnt
Leaves. Color - Yellow
Setup. Strain - Autoflowering
7 months ago
2
3
Solved
cultivars
Iron Deficiency?Appear to have an iron deficiency, perhaps as a result of lock-out. May have been triggered by light stress or environment changes. Living soil media, watered with rainwater, supplemented with compost teas and organic soil drenches pH to 6.5. Seeking advice as to how to correct7 months ago
3
1
Solved
Hazyhotnhumid
Leaves yellowingDisclaimer: the question is about another OG kush plant that's growing in the same tent as the OG kush in the diary. Same age, feeding and conditions.
The leaves on the said plant are getting yellow and browning on the edge. My tent does get hot at times. Any ideas?Week 10
Leaves. Color - Yellow
7 months ago
1
1
Solved
floridaboy
Fan Issue1 plant has yellowing leaves only at top of a few main colas. Other plant fine. Lower buds on both plants are fine. Light is at 62000 LUX (it's all I have), max is 75000. Forgot to press oscillate on fan after watering. 2 days gone, affected plant got no fan. Nutes same 4 both.Week 11
Leaves. Color - Yellow
7 months ago
6
5
Solved
Dreamchvser
Soft hanging yellow leaves, some with brown spots in the middle. Deficiency, Nutrient Burn or what could cause this ?Hey guys, I got a problem with two of my 4 plants. They started to develop yellow droopy and soft leaves that start to fall off on their own.
I’m not sure if it’s a nutrient deficiency or blockout from ph or something else.
I watered them only with water ph 6.5.Buds. Not fattening
Leaves. Dropping off
Leaves. Color - Yellow
7 months ago
3
Solved
smashbob
It's: My leaves are yellow Part 6000White Widow Auto CBD
Soil
Mid of week 2 of Vegetation
Outdoor,
gets sun and led
Watered with neem oil and potassium soap (had thripses) Now released lacewing larvae. Fertilize with these two mineral fertilizers Bio Nova Autoflower Supermix and Bio Nova X Cel h
Leaves need...?Leaves. Color - Yellow
7 months ago
1
1
Solved
VeruZ
should i be worried?8 weeks in flowering and now I have some yellow leaves, normal?Leaves. Color - Yellow
7 months ago
3
4
Solved
LatiAdorati
Yellowing leavesLower leaves are turning yellow, these seem to be one that are hidden a bit from sight, so possibly not getting enough light, but it seems to be spreading, and one of them has fallen off. Is this some form of nutrient difficiency, or something simipler?7 months ago
4
3
Solved
PostMaGrow
Gelbe SpitzeHabe Probleme hauptsächlich an der Spitze und vereinzelt an der Pflanze!
An der Spitze ist es nur am auffälligsten..
Kann es Lichtbrand sein?Leaves. Curl up
Leaves. Color - Yellow
7 months ago
1
1
Solved
Maple
Lower leafs getting yellow tips and spotsI just noticed that the lower leafs are dying, while other leafs are getting yellowish spots. Is this some kind of nutrient deficiency? The leaf with the yellow spots is near the air intake.
They didn’t get any fertilizer except root juice since the soil is still somewhat fresh.7 months ago
1
1
Solved
Stunatic
Yellowing, wilting, stunted growthCan anyone please help me identify whats wrong with them. I've done a flush, adjusted the lights, reduced the nutrient strength, I've pretty much done everything and still stunted growth and they are still looking weak and frail. I'm lost and I don't even know what's wrong.Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Pale
7 months ago
1
5
Solved
Ghost24
Yellowing from the topRuntz Auto
Week 6 of flowering
Growing hydroponics using silica, MJ plant prod finisher, cal mag, hydroguard, root drench, bud enhancer and sweetener. Mixed exactly in that order.
pH 5.9 (using pH pen for readings)
yellowing from the top
I don't have ppm/EC meter or light meterLeaves. Tips - Burnt
Leaves. Color - Yellow
7 months ago
3
4
Solved
BalkonGrower
Am i overwatering my plant ? Im a noobDid i overwater my plant? Symptoms are curled leaves, leaves are yellowing from outside to inside, tips are brown
Im watering once the first 3 cm are feeling dry with 1/10 of Pot Volume so 800ml.
Im using BioBizz BioGrow as a Fertilizer.
Im in Week 6 of VegLeaves. Tips - Die
Leaves. Curl down
Leaves. Color - Yellow
7 months ago
1
1
Solved
Insertcoin
Yellow tips at bud-leafsWhat is the worst case of what could happen to the buds and the harvest due to the yellow tip burn?
Since 5 days the near leaf buds have yellow tips.
It could have any reason. Flys, high ph, to high nutients.
Already watered with neem oil and gave citrusjuice in water to lower p7 months ago
4
4
Solved
Grower422
Whats wrong with herWatering every 3-4 day with around 1,75 Liter, Ph 6,3.
Once a week feeding biobizz fertliza, about 1/3 of the recommend amount.
It started 1 day ago, after watering and feeding.Leaves. Tips - Burnt
Leaves. Color - Yellow
7 months ago
1
1