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
Is this light burn?
SupportiveMango
started grow question 5y ago
Is this light burn? I’m about 7-10 days from harvest. Wondering if I need to increase the height of my lights?
Open
Week 11
Leaves. Edges burnt
likes
Answer
TheChronicThumb
answered grow question 5y ago
I would definitely lift my lights a bit. Although you didn't say how far you had your lights from the plants. Leafs look a little dry. What is your R.H sitting at? Other then that everything looks good. Well done.
1 like
Complain
CrowMaster
answered grow question 5y ago
Ur day temp is way too high…raising lights will help a little..mabe turn down wattage if possible…run ex.fan all the time…lower temp any way you can
1 like
Complain
Similar Grow Questions
Solved
BonusPackage
Some of my leaves on the pre-flowering plant are discoloured and yellow on the edges. Please advise
Week 10
Leaves. Edges burnt
7y ago
1
1
Solved
Seedler
Phosphor? wind Burn? my Leaves crisp up!
Hey, i have a problem where 1-2 plants got some issues with brown-bronze'ish spots on the lower leaves. i have some photo to show you. also i'm worried it might be thrips but i don't really see any bugs. it also might be wind burn because the fan was a bit harsh :/ any idea?
Leaves. Edges burnt
Leaves. Color - Mottling
4y ago
3
Solved
burnerac
Am I starving and dehydrating my plant, or cooking it with nutes and drowning it?
I was thinking the brown spots were nute burn so I've only been moistening the clay medium and little bit of starter soil with 6.5pH water. Of course the roots don't reach the dwc yet. Is my mistake in using no nutes? Is this plant under-nourished and thirsty?
Week 5
Leaves. Edges burnt
Plant. Wilting
6y ago
4
3
Solved
THe_Cannadaddy
Browning / curling of leaves late flower. 3/4 clones affected - all different strains. Refer to week 14 flower post
Browning / curling (up and down) of edges of leaves started 05/21/21 on the orange cookies Since then the OGK and TT have also gotten brown leaves, the Gelato is unbothered Could this be nutes? part of the flush process? I have also read it could be old age? a natural thing? halp
Week 14
Leaves. Edges burnt
Leaves. Curl up
Leaves. Curl down
5y ago
2
Solved
BillMonroe
* Spots (pic 4), on only 3 leaves of the plant at the top. Last week, before lights out, I misted. By lights-on time, some parts of the plant were still wet. Is this some water burn? Tap water is PHd and ~215 ppm (plenty ca/mg) * Any insight on those yellow tips is welcome! :)
Week 6
Leaves. Edges burnt
8y ago
8
6
Solved
absolutgrow
two of my plants have curled leaves and yellow leaf tips. But this only occurs with the new pairs of leaves. What could be the reason for this?
Week 5
Leaves. Edges burnt
7y ago
1
3
Solved
Nekizalb
Deficiency?
Hi, I've encountered some deficiencies in my plant but I'm not sure whether it's Magnesium, Potassium or anything else. I'm using the BioBizz outdoor trypack (BioBloom+FishMix+TopMax) Currently 2ml/L each. Symptoms are shown in the lower leaves. Maybe CalMag? or Pk 13-14? pls lmk
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
2
Solved
Mn_Smokes
Leaves changings
Leaves. Edges burnt
Leaves. Color - Yellow
1y ago
1
6
Solved
Fetanq
Is this due to the sun and hot weather?
Some parts of some leaves are looking like they're burnt or something. Is this due to the sun? Or do I have another problem? It has been extremely hot last week (around 35 degrees all week). And the plant has been in direct sunlight (I've moved it into the shade yesterday)
Week 9
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Other
6y ago
5
5
Solved
FreshCoastOrganics
Deficiency?
Hey everybody, I’ve never really dealt with deficiencies in autos as most of my experience is with growing photos outdoors. Does this look like a magnesium deficiency? These just appeared over night on just two of my larger growing white widow autos. Please let me know, thanks!
Leaves. Edges burnt
Other. Other
Feeding. Deficiences
6y ago
3
2
Solved
CanadianGrowing88
Rusty/dry looking tips
The tops of one of my plants is showing some signs of nutrient/light burn, I’m not sure which it is. It’s directly under the centre of my light, it’s at 18”. It’s the one plant only and each have been receiving the same amount nutes/water rotate plants around?Any help appreciated
Week 7
Leaves. Edges burnt
Leaves. Tips - Burnt
6y ago
2
Solved
Marijuanaut
Yellow/burned tips & curled leaves
I have an issue with some yellow/burned tips and curled leaves. I already suspect that mainly is from light stress but could also be a nutrient deficiency? I´ve raised the lights the max I can and keep it at 80% for 20 hours. Biobizz soil and nutrients. Thanks in advance!
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Yellow
1y ago
10
7
Solved
xtRaCorTx
Light, nute, wind or heat burn?
Im getting some browning on the serrated edges of the leaves, moreso on the upper fan leaves, but not on the sugar leaves, with some cupping of the upper leaves and the ones directly under the light are getting a lighter color overall. Any guesses? Light, nutes, wind or heat?
Week 9
Leaves. Edges burnt
5y ago
2
2
Solved
Ferolikom
what's the problem?
What are the visible spots? What am I doing wrong?
Week 1
Leaves. Edges burnt
3y ago
4
1
Solved
spiderdijon69
Slightly Brown Crinkly Tips
Dose anyone know what could be causing this browning at the leaf edges? It is a bit dry and crinkly to the touch. This is only on the bottom two fan leaves, and only the very tips. All the newer growth looks fine. Nutrient Burn maybe? Should I be worried, or adjust anything?
Week 2
Leaves. Edges burnt
4y ago
1
1
Solved
Eryan
I think underwatering combined with the light being close has caused my issue. However older leaves have also dried up and died (but staying green). The way the leaf looks with yellowing though, and because a couple of leaf stems are turning reddish, maybe it's K deficiency?
Week 6
Leaves. Edges burnt
7y ago
2
3
Solved
SAC87
Leaf issue in Wk 6
Hi I am having a leaf issue late in week 6. It’s been coming on a while. I’m wondering if the ph is out or too high ppm. 7 gal pots in a Scrog, it’s hard to test runoff. I’m starting to flush now so does it matter as much as long as ph is good? More wondering for next run. Thanks
Week 14
Leaves. Edges burnt
Leaves. Tips - Burnt
6y ago
1
1
Solved
Seksix
Hi growmies i would apreciate it ur opinion
Good day guys i have a question about my plants, my question is why my stem turn allmost black but plant doesent show any problem with it , is it genetics or my fault something ? And how they look (ur opinion) i want soon to cut them and to put new ones in bigger pots.
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Red or pink
2y ago
3
2
Solved
Posse
What is the problem? Leaves turning on edges, no growth See pictures
Leaves. Edges burnt
5y ago
2
Solved
GeminiCQC
To Flush Or Not To Flush
Multiple growmies of mine have told me that I can start flushing, but I am seeing multiple issues. Last feed was .5ml of ph perfects bloom, micro, an grow+ .5ml cal mag. This was in 800ml I fed two days ago. Listened and started flushing. Should she eat?
Week 9
Leaves. Edges burnt
Leaves. Color - Mottling
Setup. Strain - Autoflowering
3y ago
3
3