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Grow Questions
Yellow leaves
Yellow leaves
Mrgrecoa
started grow question 3 years ago
I have some problems here in my flowering pls need help
Open
Leaves. Curl up
Leaves. Color - Yellow
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Answer
BDar_medicine
answered grow question 3 years ago
looks like light stress. how far are your lights away and what power? a basic tool in using is a lux meter app on my smart phone to help guide my way.
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Similar Grow Questions
Solved
levensfiets
some of the bottom leaves (all 3 plants affected) are slightly curling up towards the end. she looks pretty healthy to me, so i'm wondering if anyone here recognises this and knows what might cause such symptoms?
Week 3
Leaves. Curl up
4 years ago
2
2
Solved
KUSH01
Leaves curling is it due to light stress or wind over canopy? Have provided pictures of leaves labelled "leaves curling" and also lamp to plant distance. Lamp to plant distance is 1.5 to 2ft.All leaves affected are the ones closest to light .Any advice greatly appreciated.
Week 6
Leaves. Curl up
4 years ago
1
Solved
smells_like_weed_in_here
Yellowish color on most of the leaves and the condition did not change after watering. I suspect it's nitrogen deficiency or some pH problems. The plant is in pre-flowering, with sex being revealed. Will go into flowering soon. I watered it with 1.5l Any thoughts?
Week 13
Leaves. Color - Yellow
4 years ago
2
2
Solved
Gr33nFi3ld
Hey guys. Leaves not curling upwards as such but I'm getting some leaf tips that seem to be reaching upwards slightly. Does this mean I need to up her cal and mag intake? I read somewhere if the leaf tips are starting to "pray" towards the light it could be a cal/mag def?
Week 8
Leaves. Curl up
4 years ago
1
1
Solved
rhodes68
See pics Brandy and Maggie curled leaves-yellowing-spotting so making an attempt to fix the issue with a 6.1 PH root drench of Cal-Mag 5ml and Kangaroots 10ml / gal about 2 gal for each plenty of runoff that tested at 6.1 PH. Soil has tested twice at 6.5-6.8, notes in grow. idea?
Week 3
Leaves. Curl up
5 years ago
1
1
Solved
Litngrn
got a little problem with some browning brittle fan leaves. last few pics please.been on foxfarm schedule whole life and started beastie blooms last night. did have my lights lower than manufacturer's recommendation. Raised back up help me what do your eyes see? Thanks for help
Week 7
Leaves. Curl up
5 years ago
5
2
Solved
trailerparksupervise
Is it normal for new growth 10 days into flowering to be lightening in colour? I am new and noticing that it is fairly lighter than previous veg growth before as my nutrient needs and feed has changed. Just want to be safe! Thx 😄
Week 9
Leaves. Color - Yellow
4 years ago
2
2
Solved
Greendawg
Ok.i have my largest plant with yellowish leaves this week. Next week I will remove grow lights before photos. Help with yellowing leaves. I am running a good mixture soil, with manure as a grow. Should I addgrow?
Week 11
Leaves. Color - Yellow
4 years ago
4
4
Solved
LordAzrael
I don't have a PH meter, just some test strips. Can anyone recommend an inexpensive meter I can get in the UK? There's a bit of yellowing on some leaves (see my diary entry on week 8) Buds seem to be developing a bit slow Should I switch from 24 hr to 20/4 or 18/6 ?
Week 8
Buds. Not fattening
Leaves. Color - Yellow
4 years ago
2
3
Solved
Jordantone1
Can someone help me diagnose why my girl has yellow spots on older leafs and new ones coming in yellow? She is getting fox farms nutrients and watered but I think I may have caused lockout??
Week 2
Leaves. Color - Yellow
4 years ago
1
Solved
Cr8grow
N or Mag deficiency or other? Leaf tips browning, curling up. Pics added to my diary week 10 Day 1 week 11, start week 5 flower Soil Roots Organics 707; amended perlite, worm casings, silica Temp 64 - 81 RH 40 - 35 Water PH 6.5 Nutrients - Superthrive, Budswel, Biocanna Flores
Week 1
Leaves. Color - Yellow
4 years ago
15
7
Solved
MediciGrade
Brown spots and yellowing pictured above. My best guess is a Cal/Mag deficiency. Was feeding Botanicare Cal-Mag Plus at 1 ml/l up until ~2 weeks ago (friend has been watering while I was out of town). Before I feed her, any advice on what the problem is and how to correct it?
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4 years ago
2
Solved
XiceX
what are those spots on the leaves, they appeared last week. I try to rinse the root with 2 L of pH 6.7 of water without nutrients, but it seems to continue
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4 years ago
2
1
Solved
TonyTrichomes
I have a deficiency. Can you please check out my pics and give your advice? I thinks its a Magnesium deficiency, am I correct? Increase CalMag? Flush with extra water? Any tips would be helpful.
Week 11
Leaves. Veins - yellow between
Leaves. Color - Yellow
4 years ago
4
3
Solved
VagabondGrowHound
So, my other plants have surpassed this OG, unfortunately, a week younger, too. I took pictures of the PH test Do you think that was the problem? (I personal so I don't water for the first 3 weeks, lol, otherwise the above happens.)
Week 4
Leaves. Color - Yellow
4 years ago
1
3
Solved
GenghiSkunk
Hello guys! Overall the plant looks light green/yellowish and pretty small, with short internodes and bottom leaves with burnt and curled up tips. I give water every 3/4 days and commonly suggested fertilzers quantities. How can I let her recover and get bigger? Thanks :)
Week 4
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Spaces between nodes
4 years ago
3
2
Solved
Greengirl420
Something is definitely wrong. Any tips are welcomed (be gentle lol, I’m not a professional). Nutes or lights if you had to guess? Does anyone grow organic? I’d like to learn more about that. Where do you get your seeds from? Do you like auto flowers? Tips from start to finish?TY
Week 6
Leaves. Curl up
4 years ago
7
3
Solved
zerobane
Leaves are fanning upwards and undergrowth is huge in flowering phase. Should i be worried about the upwards fan, should I trim on this point or just leave as is and just remove dead leaves?
Week 6
Leaves. Curl up
4 years ago
2
2
Solved
Amnezia
Maybe someone can tell me if I should or can defoliate The BlueDream No 1&2 Cause the leaves cover a lot & each Day the girls grow more & it gets more difficult to LST or bent the leaves somewhere & idk what’s going on with the BlueDream No.3 I did some research & I thought it might be CalMag deficiency so I add 1,5 ml GHE CalMag to 1L water but the problem with the leaves is still there ( see pic BlueDream No.3 ) I’ll be thankful for any advice & help !!
Week 6
Leaves. Color - Yellow
4 years ago
2
1
Solved
N0fun
Hi everyone, This is my first grow. So, do i miss something important here? i do not use any method at all.. she is growing how she wants.. the only thing bad i can notice is the yellow leaves (older leaves) any advice are welcome. i use a mix of BIO-bloom and TOPMAX atm
Week 7
Leaves. Color - Yellow
4 years ago
1
1