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Back to Grow Questions
Are my leaves light stressed?
Noahbear
started grow question 4y ago
Are my leaves getting too much light? They seem light stresses. Any input would be great- thanks
Solved
Leaves. Color - Yellow
Setup. Lighting
likes
ChitownCannaChica
answered grow question 4y ago
Maybe? Looking like ph and possibly heat/light
1 like
Complain
Selected By The Grower
Organoman
answered grow question 4y ago
Not light stress, but the beginning of magnesium deficiency. Giving cal/mag will solve this and prevent it from getting too much worse.
2 likes
Complain
Similar Grow Questions
Solved
hweixd
Got a Mars Hydro TS600, will it do alright?
My plan is to grow only 1 plant, in a 40x40x120 tent. I know the tent is pretty small but hopefully i can do some training on the plant to grow wide Will the light do until the end? 100wats, but no light dim possibility. Currently growing seedling at 13 dli at 60 cm
Setup. Lighting
2y ago
2
1
Solved
Martian
Irregular light schedule.
I am thinking about giving her 24h lights a few days a week and then go back to 18h. Just to give her a boost. Will this irregular light schedule harm her? My first thought is that it doesn’t matter much since she is an auto, however I know that plants love balanced environments.
Week 3
Setup. Lighting
9mo ago
10
9
Solved
420pete1
I am trying to figure out what I need to add or do to my plant and what the deficiency or pest problem there is please help first time grower look at the pictures and videos I took of the leaves please
Week 15
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
Solved
Fasty
One plant (the one on the right) is going yellow, with brown mottling on the leaves. Both plants have been treated exactly the same. I’m giving the plant some calmag and extra nutrition after flushing it (which had no effect). Any ideas to save this plant? Worried…
Leaves. Color - Yellow
Leaves. Color - Mottling
2y ago
1
3
Solved
Ninja_grow
Nitrogen deficiency?
Nitrogen def? Ph?
Week 9
Leaves. Color - Yellow
5y ago
2
Solved
Lapaluma420ohe
Verfärbte Blätter
Verfärbte und teilweise vertrocknete Blätter bei meiner Autoflower in Woche 9. Nährstoffmangel, Nährstoffüberschuss, zu viel Licht? Grobe mit biobizz biogrow, biobloom und topmax. Woran könnte es liegen?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
9mo ago
3
3
Solved
Ema26
High temps
Hygrometer claims 36c in the tent, it has me sweating when I go in there. Plants still seem okay though, what is your thoughts? Thinking of switching to led for cooler temps
Setup. Lighting
6y ago
2
5
Solved
dusterp
Calmag Deficiency? Yellow Spots
Last res change I saw some yellow/brown spots on the fan leaves up where the main cola was getting too close to the light. Is this a calmag deficiency or light too close? I moved the light up to the top of my tent with zip ties and got back several needed inches. See pics.
Week 6
Leaves. Color - Yellow
5y ago
2
3
Solved
SugarBoogers
Weird burn spots
Any clue on what this is and is there any way to fix/prevent this in the future?
Leaves. Color - Yellow
4y ago
3
3
Solved
Broffel
Yellow leafs
Is it nessacery to have yellow leafs on the plant when you harvest the plant?
Leaves. Color - Yellow
6y ago
3
3
Solved
Chaweeder
LED lights
Are these LED lights any good? I'm new to growing, I have a 4x8 room
Setup. Lighting
6y ago
2
Solved
Maskedcucumber
Which strategy with auxiliary grow Leds ? 3x20w Leds -Thanks !
Helps maturing but I wonder if buds are bigger. I used to put 3 extra lights 20 cm below canopy, leave many large leaves at the top and lollypop 30%. 30% is definitely not enough even with those 20w LEDS (50% is probably better). How do you use extra LEDS ? Where do you put them?
Week 10
Setup. Lighting
3y ago
9
7
Solved
BongRip
1st Week Problem
My plants are in day 7 and I noticed some problems with it. A new set of leaves is coming out yellow in one of my plants and also I am seeing some spots on 2 other plants. They are under 200cfl with the distance of 6 inches. Temperature goes up to 85'F sometimes. Help out pls!
Leaves. Color - Yellow
5y ago
4
4
Solved
pawsz
Splotches on leaves
What is this discoloration on my plant? Ph issue? Low phosphorus? Don't see any evidence of bugs... Color isnt as green as the plant still in veg.
Week 5
Leaves. Color - Yellow
5y ago
3
1
Solved
kevgrow
Day 3 - Seedling Stage - how much light is needed
First Time Grower - Day3 Seedling Stage Using roots organic soil and Mars Hydro 1000,, im not sure what strains they are, hoping one is a female 1- how much light is needed at this stage? Currently set at 355 Lux x100 2- should i set it to 18hrs / 6hrs or just 24/hr of light?
Setup. Lighting
5y ago
2
2
Solved
Wallkillman
I do have question about changing to 12/12 from 18/6 . I am going on 8 weeks from germination maybe next week?
Setup. Lighting
4y ago
1
1
Solved
CnTink29
Help!!! Is this discoloration on leaves reversible?
Can anyone check the pictures I uploaded and give me their opinion on the colors? Not sure what I need to do to stop the change.
Week 2
Leaves. Color - Yellow
Feeding. Schedule
5y ago
7
6
Solved
cannonone
Purple branches
Hey, many of my branches have turned purple, and a few leaves yellow.... I'm using bio grow (biobizz) since 5 days, is it calcium or magnesium deficiency? What to do? And can I start with flowering now? Thanks
Leaves. Color - Yellow
5y ago
1
3
Solved
Juschiln420
Help with diagnoses leaf yellowing and yellow spotting
Can anyone help me in the right direction on what the plant is telling me she needs. I'm getting yellowing on lower leafs and spotty yellowing on upper leafs. I thought maybe light burn for spotty yellowing and raised light a few inched with no change. I appreciate the help!
Week 4
Leaves. Color - Yellow
Leaves. Other
3y ago
10
12
Solved
MissGreenEyes
Seedling leaves are discolored and starting to curl
Not sure what the issue is here. You can see it evolving over the past few days (Sept 29th - Oct 2nd). The leaves are discolored, light, almost yellowish in color. And one is starting to curl. There are clear images of this in the post above. What's going on here? Thank you!
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
4