The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Leaf Discoloration
MisterPandaBear
started grow question 5y ago
What is causing this discoloration pattern?
Open
Week 12
Leaves. Color - Yellow
likes
Answer
MangoDudu
answered grow question 5y ago
It’s like a micronutrient def, Zn causes the necrosis on tips of the leaves in a immobile way. Maybe combined with Mn that causes that one in the middle of the leaf. Are u sure to give them enough calmag?
likes
Complain
Similar Grow Questions
Solved
Jeremi420
Fertilizzato 2 volte di fila. Carenza o eccesso?
hi, biobizz light mix soil, third week of flowering, I doused twice in a row with nutrients. they looked hungry. today I am like that. does it seem shortage? bathroom with only h2o or nutrients? Thank you.
Week 7
Leaves. Color - Yellow
5y ago
1
4
Solved
ritimudir
Yellow color
can i find out how well things are going with my girl, turned yellow .. ph didn’t measure the last one for watering with purchased water (before that there was tap water)
Leaves. Color - Yellow
5y ago
1
Solved
NIagaraFalls420
Leaves continue to get yellow and fall off. Plant dying, bud looks okay.
Still having issues with my plant. Leaves are getting more and more yellow and 2 have fallen off. Pretty far from harvest still for the leaves to be getting this yellow. Temps in tent are 18-22 c with leds 200w act wattage. Overwatered once but I doubt it would cause this. Ideas?
Week 7
Leaves. Dropping off
Leaves. Color - Yellow
Plant. Stem - Red or purple
6y ago
4
3
Solved
Mycorrhiza
BioTabs Autopot / Is this Nute Burn or PH problems ?
Howdy Ho Everyone, I have been using Biotabs for a while, but I notice in the late flowering stage week 7+The plant leaves start to get yellowish and some start to curl up Is this nute burn or PH problems ?
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Automatic systems
4y ago
3
Solved
Bizio
Yellow leaves with grey/dark outline
I have some yellow leaves with grey/dark outline. Do you know the cause? Could be the humidity level too low? or K deficiency?! I'm not so sure about the last one. Help me guys please.
Week 11
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
2
3
Solved
FieldMouse
Yellow spot with a tiny hole
Just curious as to what this might be a sign of? Its yellowed and has a tiny hole in the middle. Thank you and happy growing.
Leaves. Color - Yellow
6y ago
1
4
Solved
Growergreg
Yellow baby leaves?
the front Two Plants have stumped me with their yellow leaves (days 2 too 4) I don’t know what exactly happened during germination?? has defiantly slowed these girls down. Any suggestions comment below:)
Week 1
Leaves. Color - Yellow
6y ago
3
2
Solved
Frosty_Buds
Help: potential over fertilisation or over waterning
I used Biobizz bio grow, 2ml/L and sprayed them more than usual. The tip of the leaves is getting yellow. 2 plants have the leaves pointing down and seem more textured and tick. The other 2 (the biggest) seem better, but the yellowing of the leaves is more evident. Check the diar
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Other
2y ago
7
2
Solved
skunkch
Manganese deficiency ?
I spotted some of my fan leaves are slightly turning yellow with brown dots. Do you guys know what could be wrong and what should i do ?
Leaves. Color - Yellow
4y ago
2
2
Solved
Straightcurve6
7 week slh auto help plz yellowing leaves rust spots
Hi need help please. 7th week super lemon haze autos not sure if need cal mag or if it has too much nutes or lockout or if they are just not getting enough light through canopy idk I'm stuck. any insight guys? Thanks in advance.
Leaves. Color - Yellow
5y ago
3
Solved
deanondeanon
Yellow leaves
Hi! Can someone tell what the yellow spots are?😰😰
Week 1
Leaves. Color - Yellow
5y ago
1
1
Solved
DeathInc
Normal Canopy Yellowing?
Normal Yellowing at this point/flowering age? Pics are in order from left to right, plants 1 through 3. Thanks guys!
Week 8
Leaves. Color - Yellow
4y ago
2
2
Solved
farah4weed
Yellow and pale leaves of plants. Purple stems.
The week before flowering, I flushed the pots and brought the tds to 700ppm. Don't you think the leaves are dull? I feel there is a problem??
Week 12
Leaves. Color - Yellow
2y ago
25
6
Solved
Gift_from_Nature
My plant has nutes burn AND Phosphorus deficiency...
Hi! I started week 4 of flower with a PK excess (nute burn) so I flushed the medium. I started the nutes the following watering cause I saw some PK deficiency appearing. But now, my plant shows signs of both nute burns AND Phosphorus deficiency. What should I do? flush? feed? thx
Week 8
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Other
5y ago
1
1
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
spaceweedgrower
Yellow spots and droopy leaves - RQS Shogun photo
Hi! 2nd week after 1st true leaves. 70/30 buffered coco/perlite. Terra Aquatica Tripart. Feeding 2×/day, 200ml in, 100ml runoff. Always 1.5ml/L CalMag. pH ~5.9, EC diff ~150–300. Suspect calcium def., leaves droopy. 18/6 200w led 60cm. Room 23C, ~70% RH. Any help appreciated!
Leaves. Color - Yellow
9mo ago
1
2
Solved
CuzICann_abis
On Week 11 Day 74, I've been noticing the leaves turning yellow. I'm assuming because we're getting close to harvest, but after reading more about nutrient deficiencies I'm wondering if I should be doing something about it. I started flushing a 1.5 weeks ago.
Week 11
Leaves. Color - Yellow
6y ago
4
4
Solved
Grrrower
Yellow leaves
my little GG2 is starting to lose many leaves (they turn yellow and fall even before drying) while the other is not having any problems (the only difference between the two is the "aggressiveness" used in the LST) it could be due to the flushing done (but less than 5 days ago) 🤔
Week 10
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
2
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
MrBigGrow
Mg deficiency?
Is this yellowing a sign of magnesium deficiency?
Week 5
Leaves. Color - Yellow
3y ago
12
9