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
Oldest leaves turning yellow
Waveform
started grow question 2y ago
What could be the cause of oldest leaves turning spotty yellow on 3 week old plants? They got nutritients end of last week for the first time, but not that much.
Solved
Leaves. Color - Yellow
likes
Krisis
answered grow question 2y ago
Looks like there’s yellowing in between the veins of the leaf to me. That or the lights making it look that way. Anyhow that’d be magnesium deficien
1 like
Complain
Selected By The Grower
jeeje
answered grow question 2y ago
I cant see the whole plant, but from the picture it looks like nitrogen deficiency.
1 like
Complain
Similar Grow Questions
Solved
GrowP4Y
What's the problem?
Hi guys, basically for the last few days the problem hasn't varied too much but I can't figure out if it's my light or if it's coming from somewhere else. Some of my leaves are curling with stains either on the leaf or like a burn on the tips.
Leaves. Twisted
Leaves. Color - Yellow
2y ago
6
7
Solved
SupportiveMango
What nutrient deficiency is this?
What nutrient deficiency is this? Or is it nutrient burn? I'm watering with 5.5 PH using half strength Nutes, Root booster & Calmag. I don't think it relates to spiders mites since I can't see any with my 30x magnifier. Thank you so much in advance.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Other. Bugs
4y ago
3
3
Solved
AkagamiWP
What am i doing wrong? and what shall i do?
form a month i keep having a problem with my plants. the leaves are getting brown spots then they get all brown and start to crumble. i flushed the plants 2 times and no improovment. the watering ph is 6.45. i'm using advanced nutrients that i always used. temperature is 25 degre
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
2
4
Solved
Pulsar00
Yellowing leaves
Leaves seem kinda yellow on one hand. The bottom right hand corner one looks like she needs CalMag but I'm not sure. All the photos have been taken under the same light. Used to over dose the nutrients to prevent burn but continually gave them 1mL/L calmag each.
Week 8
Leaves. Color - Yellow
5y ago
2
2
Solved
TheNextGanjaMan
Yellow leaves near the harvest
This would be my last week of fertilizer watering. And the plant has the leaves turned to the side and with yellow spots. Sign of lack of zinc? I would start making the flush from Friday, is it recommended to start now? In about 2 weeks I will harvest (I tried to water today)
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
2
6
Solved
TechnoNinja
Orange/yellowish dots on my auto blueberry
Is this calcium or magnesium gromies? Safeee
Leaves. Color - Yellow
5y ago
1
2
Solved
MrNobody_3
Yellow leaf on newly germinated seed
Blue Dream is already showing a yellow leaf. Was the first to show tap root and all seeds were treated the same and planted in fox forest ocean forest with no added nutrients and watered with Distilled water at 6ph. Not sure if I should be worried now or not.
Leaves. Color - Yellow
5y ago
6
1
Solved
Rando1314
Leaves supposed to be this yellow? 2 weeks from harvest
So ab a week and a half ago I sprayed my plants w a h/p 1/10 ratio to get rid of some pests and it worked no effect on plant.Only other things that’s changed is I introduced ladybugs to help kill remaining pests if any.Also 2 wks from harvest.are leaves supposed to be this yellow
Week 13
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Other
5y ago
3
3
Solved
klimfish
Seedling leaf color is very light green.
I'm wondering if there is any reason to be concerned with the lighter color leaves of one of my plants? They are significantly more "lime green" than the other two. he one in question is the bottom one in the picture attached. It is clear how much darker in color others are.
Week 1
Leaves. Color - Yellow
4y ago
3
3
Solved
denis_naprimer
Leaves look a bit yellowish and dopey.
Leaves have some light green (close to be yellow) areas on it. Any ideas what it can be?
Week 3
Leaves. Twisted
Leaves. Color - Yellow
4y ago
1
3
Solved
Trichome_threshold
Are my plants showing signs of overfeeding ?
Are my plants showing signs of overfeeding ?
Week 4
Leaves. Color - Yellow
5y ago
1
1
Solved
impretendingtoknow
Drooping yellow/white cotyl
What’s the deal? I can’t figure this one out. Yellow/white at the end cotyledons. Does it really matter? Start of a problem?
Week 1
Leaves. Color - Yellow
5y ago
4
3
Solved
Komar85
Nitrogen def or something else ? Ph6.5
Hi everyone I struggle with some issue I don’t know or is a nitrogen deficiency or sulffur or maybe something else. I recon that roots start poping out from pot ( 7 l ) clone from Glookies which I monster crop earlier this year . 0 nutrients added transplant 2 twice Solo-2l-7l
Leaves. Color - Yellow
5y ago
2
Solved
JSanchezz
Is this Stating something or is it paranoya
I had a few leaves that were turning yellow, but they are lower leaves that are slightly yellowish on the outside, generally the plant has become a little lighter since it started flowering. Am I worrying too much? pictures were taken directly in the morning
Leaves. Color - Yellow
1y ago
4
Solved
PersasH
Im getting what looks like a Nitrogen deficency but I have put nutrients on my plants and still the same. What other thing can cause this? PH? All strains are 4 to 5 weeks old and already flowering. Yellowing started to show very early, since week 3 and leaves fall off.
Week 4
Leaves. Color - Yellow
4y ago
2
3
Solved
susina
weirs spots/lines
hello guys i've recently noticed some weird spots on my plant, she is two weeks today. I wasn't worried at the beginning but then I read about this tobacco virus that is like a death sentence for plants, and to me the signs look similar. please help
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
1
1
Solved
mf_bazinga
Hello growers,no idea what to do anymore.Over month was perfect,saw my PH netter not good,changed,but getting leaves yellow still. Was thinking not enough food and calmag,i even use revive with full food and 1y ph water but still getting yellow.
Leaves. Color - Yellow
16d ago
4
Solved
The_cannabis_botanist
Yellow Leaves
I need some help for my TD2. I got some yellow leaves on top. I fed her with Iguana Grow 3 ml and 4 Ml Cal Mag plus on 3/08.
Week 7
Leaves. Color - Yellow
6y ago
2
2
Solved
6ix6ix6ix
(Mimosa auto in coco) Yellowing tips on new growth
The top of the plant (new growth) is showing some unhealthy signs. The tips of the leaves are yellow and there are lighter green stripes on the leaves themselves. I googled and the signs match to a number of deficiencies, but i lack the experience to diagnose correctly. Plz help
Week 5
Leaves. Tips - Burnt
Leaves. Color - Yellow
3y ago
2
3
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
5y ago
5