Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Please Help
Gg6266
started grow question 2y ago
Please Help Whats wrong ? VT 20
Solved
Leaves. Color - Yellow
likes
AsNoriu
answered grow question 2y ago
Last photo , maybe magnesium. Tops are bleaching i see. Think its calcium if no spray as mentioned before. CalMag to the rescue ;)
3 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
hmstr22
White Widow day 42 looks like she lacks something
Hi, its day 42 (feminized white widow). My first grow. She is growing in a minigrow growbox on soil. since a few days old leaves turned yellow. also on the younger leaves the edges turn yellow and have some darkish spots. ph is ~6. any ideas? what kind of lack could this be?
Leaves. Color - Yellow
6y ago
2
4
Solved
SAC87
I am on day 53, I know it’s normal for plants to yellow later in flower, mine turn yellow very early like week 7. Some people way later and theirs are still very green. I recalibrated my ph pen week 6. Happened in under feeding too. Makes bud look awful. What am I doing wrong??
Week 15
Leaves. Color - Yellow
8y ago
1
6
Solved
ItsLegalInMyHouse
Hi all! I was checking on my plants and noticed one of them is showing yellow/brown spots in some the top leaves, only showing on 1 plant but I’m nervous it’s leaf septoria?? The plant is in week 10 and is my last pic on week 10 diary. Does anyone know what this could be? :)
Week 10
Leaves. Color - Yellow
8y ago
3
3
Solved
Noobftp
Problem
eighth week blue cheese auto is there something wrong with my letters? or is it natural? can it be too nutritional?
Leaves. Curl down
Leaves. Color - Yellow
6y ago
1
3
Solved
GhettoStyle
friends tell me what it can be!?
I don't understand why the leaves have such a color!! like cal-mag added and EC 0.5 is not so big for this stage of growth !!! I don't understand why the leaves have such a color(
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
3
4
Solved
Splifflicious
Yellowing first leaves - CalMag ? Bugs?
Any suggestions on the yellowing first leaves issue #Day19? Is that a Cal or Mag def ? Been watering with tap water left for 24h. Would RO water be better ? Does feeding with RO water on the entire life cycle involve to add more nuts ? I currently have only AN micro/grow/bloom.Tx
Week 3
Leaves. Color - Yellow
Other. Bugs
Other. General questions
6y ago
1
2
Solved
Bluntblazer66
Yellowing leaves
Yellowing leaves on young plants Not sure why the plants are yellowing at the bottom I added some calmag thinking it maybe a nutrient deficiency
Week 3
Leaves. Color - Yellow
5y ago
4
3
Solved
rconthefly
Leaf veins yellow
This LSD auto is in early flower, the pictures show very distinct yellowing of the leaf veins. I added small amount of cal/mag this feed. May have root lock from early age.... Any help would be greatly appreciated.🙏
Week 7
Leaves. Color - Yellow
6y ago
3
4
Solved
EaRtH
Yellowing leaves - nutrient burn or deficiency?
Hey guys, it seems like my plants have some kind of problem. I'm in second week of flower with these autos and lot of leaves started to turn yellow and even purple with occasional spots. Im using Biobizz ferts with their nutrient schedule.
Leaves. Color - Yellow
Leaves. Color - Dark-purple
2y ago
1
Solved
UKAgent47
Yellow leaves week 3 flowering
Is this normal for week 3 ?
Week 3
Leaves. Color - Yellow
6y ago
3
2
Solved
Growbabie
folhas verde limão / amarelada
Olá, se alguém puder me ajudar, estou enfrentando algum problema com minha outra planta mais desenvolvida. Ela está apresentando novas folhas muito claras nos sulcos, vou inserir uma foto em “Week1”. Antecipadamente obrigado!
Week 1
Leaves. Color - Yellow
5y ago
4
3
Solved
sir_root
Yellowing leaves mid-flower, sulphur lockout or just normal progression?
Noticed a few of the smaller lower leaves on a couple of the plants are doing this. It is still very few, so I am not quite panicking yet. I am going to recheck the pH on my res. No nutes, hot soil. Could this just be the natural progression of the plant as it builds buds?
Week 11
Leaves. Color - Yellow
1mo ago
2
3
Solved
Mazgoth
SPIDERMITE PRODUCT
Hello guys,before 3 days ago I mix 2.5 ml of spidermite product and 100 ml water because having issues with bug,the plant was looking good but now Im worried that leaves having some problem,do you think should I wash them with pure water? What should I do about this,
Week 3
Leaves. Color - Yellow
4y ago
4
Solved
Troy_McClure
soil ph is erratic fox farm ocean forest : pro-mix (3:1) - ph 6.3-6.8 run-off ph: plant 2: 4-6 plant 1: 5-6.8 watering / feed ph: 6.3-6.45 soil ph after water /feed: 5-7 soil ph when dry: 7.5-8 both plants treated 100% the same phosphorus deficiency / ph imbalance help please
Week 10
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
6y ago
4
3
Solved
BonjaMan
Plants Yellowing Mid/Late flower
hello! So my plant became yellow during the few days, more at the bottom about 10. Does someone know what the cause is ? The buds are beginnen to progress the most this days they made about 80%! Thank yoz happy growing
Week 11
Buds. Other
Leaves. Color - Yellow
Feeding. Other
6y ago
2
Solved
vzkzz
Help with deficiency
What kind of deficiency i am facing here? The plant is Royal Jack auto in his 6th week from seed. I have been feeding nutrients from BioBizz based on 1/4 of their given scheme. Watering with 3L whenever the pot feels light (every 2-3 days)
Leaves. Color - Yellow
2y ago
2
Solved
Prilyfe13
Yellowing leaves and nutrient lockout. How do I fix this? This has been a long time problem. Definitely overfed for the first 3 weeks of flower.
Lemon Cherry Cookies locked out for weeks. She's yellowed up big time. Took in less than a quarter gallon water yesterday and a half gallon today. But then she had a higher EC and TDS before adding plain pHed water both days. After topping off it went back down. Check my diary.
Week 12
Leaves. Color - Yellow
6mo ago
4
5
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
2y ago
5
2
Solved
GreenEyez
5th Flowering week leaf yellowing change in nutrient program 1 day of tent overheat
Last week (4th flowering week) I started with Plagron Greensensation and 6 days later I've seen some serious yellowing of the lower fan leaves. Also leaf tips are turning purple a bit. Had a day of overheating (~29°C) too. Question is, with what am I struggling with here?
Week 10
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
3
Solved
CheckThoseTrichs
Lower leaves drying up upper growth yellowing
Lower leaves starting to dry and upper growth yellowing. DWC, pH 5.9 and 600ppm. M-G-B series nutes.
Week 3
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
4
3