The Grow Awards 2026 🏆 
Nutrient Burn?
Toking12amstarted grow question 5y ago
The Durban Poison is showing some color change in its lower leaves. Im thinking this is a nutrient burn from to much nitrogen. Would that be everyone elses conclusion?
likes
homerjgangiaanswered grow question 5y ago
Hi mate ...
it's for sure a little deficency of calcium or magnesium!!!!
Good luck with your grow mate!💪💪
Toking12amanswered grow question 5y ago
Thank you all for the info. I will try adding some cal mag and update once I see some change.
1 like
Complain
Hashyanswered grow question 5y ago
Looking more like calcium or magnesium then nitrogen.
2 likes
Complain
Similar Grow Questions
Solved
Weedmatze
Mangel, zuviel Dünger oder normaler ProzessMeine Pflanzen sind jetzt tag 44.
1 xThink different gelbe Blattspitzen, Maßnahme ich dünge nicht mehr seit 6 Tagen. Nur ph 6,0 Wasser calmag biobizz.
Die Red poison gelbe Blätter bzw. Das grün geht raus und die grossen Fächerblätter werden langsam gelb.
Mangel?? Zuviel Nahrung?Leaves. Color - Yellow
2y 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: 0.82y ago
3
3
Solved
JBalz
What happens if fan leaves all fall off before maturity?This is first time ive dabbled with ilgm autos. Plants grew twice the recommended size and are on the 9th week. The pistols are 90% white and the fan leaves are yellowing fast. I've never experienced this and am afraid the yellowing will affect buds before ripe. Suggestions?Leaves. Color - Yellow
4y ago
1
Solved
ReginaldJohnstonX3
Late Flower Rapidly Yellowed LeavesThe yellowing leaves have definitely progressed quite a bit in this last week. Does this look like a normal natural late flower nitrogen deficiency? I still want to flush the plant, wondering if I should start the flush now because the leaves are already starting to get yellowed.Week 19
Leaves. Color - Yellow
4y ago
5
4
Solved
WitekMajestatyczny
Leaves still goes yellow after flush with pure water 6.5pH, then only water with Biobizz Fishmix and last time all nutrients but 50% of recommended.After last question with those symptoms, I flushed her with pure 6.5pH water, then next time started to adding only Biobizz Fishmix, and another next time I started to add all nutrients again but 50% of recommended. Buds, the white ends of the flowers begin to turn brown as well.4y ago
3
3
Solved
Finch
Color of leavesHow does she look? I think I see some spotting but idk could be paranoidLeaves. Color - Yellow
5y ago
7
3
Solved
Maskedcucumber
Brown leaves and red stems. Is this a calcium deficiency ?I had an iron toxicity recently that may explain the brown parts but it may look like calcium deficiency. There are many red stems too but it maybe something else like the bad Ph and overfeeding from the previous month. What do you think ? Thanks !!4y ago
2
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!6y ago
1
1
Solved
GrowingGrannie
WTF is wrong?!What's going on here? Can anyone tell me? These are Tangerine Dream, treated the same way I treated the ones in my diary but they're 3 weeks younger than the diary... HELP! (You can also see the HUGE difference in height between these and the ones in my diary... have no clue!)Leaves. Color - Yellow
Leaves. Other
4y ago
2
Solved
Ph0en1x
Prevent getting worse leaves colourHello everyone,
The plant is on day 4 of flowering, and the symptoms (light/yellow tips) are getting lighter and spreading.
This is the nutrient solution I watered with:
------
Terra Bloom: 5 ml/L
CalMag Pro: 2.0 ml/L
Power Roots: 1 ml/L
Sugar Royal: 1 ml/L
Pure Zym: 1 ml/LLeaves. Curl down
Leaves. Color - Yellow
25d ago
1
4
Solved
Habosabin
Is it best to leave the yellowing leaves or remove?Do I remove yellowing leaves or leave them for stored energy for the plant. Thx.Week 7
Leaves. Color - Yellow
5y ago
3
5
Solved
Ner0z
Pale lower growthSo my bottom leaves have gone completely pale but my new growth looks pretty good. They were transplanted yesterday but the leaves were already a light lime. Any idea why the first set of true leaves are this different. Promix hp/6.2ph in. Runoff 6.5. 1 25% str light feed done5y ago
4
1
Solved
vzkzz
Why is my plant yellow at the top?Seed: Royal Jack from RQS 8 weeks from seed(4th week of flower)
Medium: BioBizz Lightmix
Nutrients: Half of recommended BioBizz dosis
Bio-Grow
Bio-Bloom
Top-Max
Bio-Heaven
Acti-Vera
Calmag
Watering with 4 Liter water and nutes every 2-3 day.
Run-off ph 6.6 1260 ppm
45DLILeaves. Color - Yellow
2y ago
4
Solved
HighRoller909
what is the problem?After I started to give her bloom fertilizers,it stopped spreading.yellowing from edges to center.Week 13
Leaves. Color - Yellow
5y ago
3
4
Solved
TheGrowTurk
Leave troubleHello grower college's!!
As you can see I have some leaves that are yellowing. The leaves I took are from the lower canopy.
This is the 3th day since I set the timer on 12/12.
Please some help and tips. I use the Biobizz line on soil.
Thank you 😘Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
1
3
Solved
Kazal
Yellowish leaves with brown stampsThe half tent tha i have do topping looks like something misses can u help me?
3week of flowering now
The leaves are yellowish some have brown stamps and the 2 of them thats bigger have very slim leaves at the top
The enviroment is kinda cold with 15-23 CelsiusLeaves. Too few
Leaves. Color - Yellow
1y ago
3
4