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Back to Grow Questions
Yellow Leaves
420cropper
started grow question 5y ago
Can anyone give me an answer as to why this one plants starting to get a yellow colour coming threw in the middle of the leaves? I don’t think it’s due to heat as the other plants are growing a nice green
Solved
Leaves. Color - Yellow
likes
DoctorGreenThumb
answered grow question 5y ago
Hard to tell by the pic but it looks like magnesium deficiency to me.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
KurtThePlantGuru
Is this a deficiency or burn?
I have 2 new, 2 week old seedlings in my grow room and the bottom first set of leaves is yellowing at the tips to like half way up. Their not as green as the new growth.
Leaves. Color - Yellow
2y ago
2
1
Solved
Qutro
Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?
Leaves. Color - Yellow
5y ago
4
4
Solved
Brock2010
I DONT KNOW WHAT MY PLANT IS DOING!!
HELP
Leaves. Curl down
Leaves. Color - Yellow
Plant. Stem - Red or purple
3y ago
8
5
Solved
Waltwonka
Magnesium deficiency?
Does this look like magnesium deficiency?
Week 7
Leaves. Color - Yellow
6y ago
2
2
Solved
Buds2k22
Ppm on blueberry cheese auto in coco coir
My ppm on auto flower was at 850 during late flowering ! I tried to increase this fed it 2times last two days and the numbers are actually dropping ! Is this normal? I noticed a little yellowing on leaf’s so I’m starting to think over feeding even tho the ppm numbers ain’t up?
Buds. Not fattening
Leaves. Color - Yellow
Feeding. Other
4y ago
1
1
Solved
weedfan133
The leaves have become glossy and yellow
The last couple of days, the leaves have lifted a bit again and bent the edges, and the leaves are glossy, was it a mistake to keep the light on 24h the first week, or what do the last couple of pics look like? (I have now set the mode to 18/6) so as not to fry the plant
Week 1
Leaves. Curl up
Leaves. Color - Yellow
1y ago
5
6
Solved
barlobruz
Yellowing/browning on new growth
Anyone have an idea on what that yellowing/browning is on that new, lower leaf in the last picture? First time grower, in Gaia Green's Organic Living Soil. Thanks in advanced!
Week 6
Leaves. Color - Yellow
5y ago
2
1
Solved
dutchMASTAkilla
Noticed these yellow spots this morning. Not sure if this is a nute deficiency, leaf septoria or too much light. My lights were pretty low as my tent isn't very tall. Have been watering at around 6.4 and recently started feeding a full dose of Big Bloom and Tiger Bloom.
Week 6
Leaves. Color - Yellow
6y ago
9
4
Solved
Yayayatoure
Nutrient deficiency
It's now Day 11 still didn't feed her any nutes yet the old leaves are showing some deficiency. Should I start feeding her next time watering?
Week 2
Leaves. Color - Yellow
6y ago
5
Solved
banurnerphone
Day 38 autos: is this nitrogen deficiency or something cal mag could help with?
Kia ora whanau, Each of my three flowering autos (the Herbies Beginner Auto Mix #1: Ape Fruit Auto, Purple Chill Auto and Godzilla Cookies Auto) has an issue with yellowing older leaves. Do I need more nitrogen or is this potentially something cal mag would address? TYVMIA!
Week 6
Leaves. Color - Yellow
4y ago
4
3
Solved
GhettoStyle
Question for bro!
Indications of the solution pH 5.7-6.0 EC 0.6 ! the photo shows two plants planted at the same time!
Leaves. Color - Yellow
Plant. Other
Feeding. Other
5y ago
2
2
Solved
Smokeyboar
Do my plants look okay i have been using calmag last couple days
Leaves. Color - Yellow
6y ago
3
3
Solved
Stunatic
Yellowing, wilting, stunted growth
Can 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
2y ago
1
5
Solved
Ryanef
Leaf problem
Some become yellow at the tip, any advice? What did I do wrong?
Week 7
Leaves. Color - Yellow
6y ago
2
2
Solved
420TouristguideDWC
Bud flower and fan leaf health on Northern Lights DWC
Any ideas what this yellow coloration is on the leaves? Only effecting this one flower area (branch) in a lower section of the canopy. I did a complete water change 5 days ago, and completed a feeding as well.
Week 7
Leaves. Color - Yellow
6y ago
1
3
Solved
Killab1405
Yellow leaves
Got a few dead/yellow leaves at the bottom. Is this normal at 8 weeks?
Leaves. Color - Yellow
5y ago
1
1
Solved
joxsc
Please help identify my Problem: Yellowing leaves with veins showing and some necrosis spots in third week of flower
The odd thing is that only some leaves in the middle of the plant are affected. My thoughts were Nitrogen or Manganese deficiency or maybe light burn (why in the mid of the plant tho?)? I feed Biobizz Bloom, Grow and TopMax, no Problems until now.
Leaves. Veins - yellow between
Leaves. Color - Yellow
2y ago
2
2
Solved
starphish
Nitrogen? Leaf spotting? Everything?
Started week 2 with slight yellowing of bottom fan leaves rapidly progressing to brown spots and slowly creeping upwards on leaf sets. I left some almost gone foliage on for photo reference. I fed some Fish Mix. thats all they have gotten. Any other thoughts? Thanks
Week 3
Leaves. Color - Yellow
6y ago
2
2
Solved
slothasor
Yellow/light green spots on leaves
Hi my plant has a few yellow or light green spots on a couple of leaves... Should I be concerned? They are in FF soil, Spuderfarmer 1000 light that is about 24" away. The temp runs between 79-83f and humidity around 50. I gave it one really light feeding of FF grow big. Thank
Leaves. Color - Yellow
5y ago
3
3
Solved
TheCode
Some leaves showing yellowing.
My grow Famylican you diagnose why the F my leaves are looking like it the last pictures!Maybe isit Magnesium Deficiency?Or Potassium Deficiency?But I think it's more like a pH Fluctuations because i have reservoir with dripping system and the ph drifts and i adjust.When harvest?
Week 12
Buds. Other
Leaves. Color - Yellow
Plant. Other
6y ago
2
4