The Grow Awards 2026 🏆 
Nitrogen Toxicity?
Findtheloraxstarted grow question 4y ago
Nitrogen toxicity? What does this look like to you? I gave a full set of nutes 3 days ago and it looks like the spots/yellowing are getting worse. I watered today with plain ro water ph 6.8 until runoff and tested it, ppm was over 900 ph was 6.2.
Solved
Leaves. Curl down
Leaves. Color - Yellow
likes
Lisaleezaanswered grow question 4y ago
Given where the plant is in flowering, I would say that this looks pretty normal and my plants certainly have a few leaves that look like this. If it were a N problem I would expect more signs of it on the other leaves, which look OK to me. The yellowing leaves will not recover and will only get browner then fall off. I remove them to let light through. At this stage, the plant is not going to miss them. Good looking plant and happy harvesting!
Findtheloraxanswered grow question 4y ago
They are autoflowers in fox farm bushmaster soil. I fed them 3 days ago with 6.3 ph water, 5ml/g calmag plus, 5ml/g fish shit, 4ml/g hyshield, cutting edge nutrients 8ml/g micro, 20ml/g bloom
likes
Complain
Similar Grow Questions
Solved
Crakatak
Yellowing copper leaves late flowerHarvest is coming up soon and I have noticed some of my leaves mostly the bottom but some on top also have started to turn yellow with brown/copper spots. I believe it is cal mag deficiency, will this mess with my yield or quality of the bud?Leaves. Color - Yellow
5y ago
1
1
Solved
knottngrower
Ich habe bemerkt dass einige Blätter gelbe spitzen bekommen haben und eines sich einrollt. Muss ich mir sorgen machen?
Foto 4 und 5Week 4
Leaves. Color - Yellow
3y ago
2
2
Solved
mdt6002
YellowingHi! It looks like my grandaddy purple is starting to yellow, in my last week of veg (7). Could it be caused by too small of a pot (3gallons), this is my 4th grow, first time growing only one plant using scrog. Maybe an upgraded pot before I flower? Thanks!Leaves. Color - Yellow
6y ago
2
2
Solved
Corwinism
What's Happening to my Glookies? Lower Growth Yellowing with Grey/Light Brown Spots.Yellowing with grey/light brown spots occurring on the Glookies plants (starting from the tip of the leaf). I believe it may be due to the Fox Farm Ocean Forest soil mix but any advice or input on what is possibly happening is greatly appreciated. Fingers also fused together.5y ago
3
1
Solved
CBDAutoGrower
Hey folks, I just noticed some kind faint yellow dots appearing on a couple of the oldest leaves on the Elixir. Any idea if its something to be concerned about? It's my first grow and I have no idea what it could be. Are they just old? Nutes? Disease? Temp? Humidity?Week 4
Leaves. Color - Yellow
5y ago
4
3
Solved
Frosty_Buds
Help: potential over fertilisation or over waterningI used Biobizz bio grow, 2ml/L and sprayed them more than usual. The tip of the leaves is getting yellow. 2 plants have the leaves pointing down and seem more textured and tick. The other 2 (the biggest) seem better, but the yellowing of the leaves is more evident.
Check the diarLeaves. Curl up
Leaves. Color - Yellow
Feeding. Other
2y ago
7
2
Solved
sh1m13
Why are those leaves damaged?Can you share your opinions about this form of leaves yellowing on buds please?Week 12
Leaves. Color - Yellow
5y ago
2
2
Solved
Gangaman84
LeavesThe node spacing is real tight is this good or bad as leaves may begin to touch each otherWeek 3
Leaves. Color - Yellow
5y ago
2
2
Solved
FoxyT
Plants heavily yellowing since week 4 of flowerPlants are yellowing too soon and too fast - if this persists they dont last the suggested 10-11 weeks
-cant hang the 600W HPS any further away
-havent fed too much nutrients if any too few
-pretty sure i did not overwater
Suggestions are appreciated thanks in advanceWeek 16
Leaves. Color - Yellow
5y ago
3
3
Solved
GracelessGardens
Yellow lines on 2 leavesAny clue what this is? About to be week 6 and in flower. I'm thinking the start of nute burn? I gave it bloom boost in the last 3 waterings in less and less amounts. let the soil get very dry before watering with plain 6.2 pH water. Any input is appreciatedWeek 5
Leaves. Color - Yellow
3y ago
1
8
Solved
jokgga
Nutrient Lockout or Nitrogen deficiency (i.e need more nutes) or Fungus (see stems)My leaves are yellow but some are turning green. Do they need more nutrients or lockout? I have not gone above 1EC but have seen both strains handling 1.5EC+ in other diaries. All three plants are drinking the water in trays.
Res/Tray@ 6.0PH/653PPM. Coco slurry @6PH/500PPM5y ago
2
4
Solved
Finch
Color of leavesWhat do you think is causing this leaf to turn yellowLeaves. Color - Yellow
5y ago
4
Solved
canapato
Spots and dry leaves.Help! I don't know what's happening to my Q1. There are spots on the leaves and some of the leaves are really dry. I didn't do the defoliation and i didn't LST so the plant is just going all natural. I feed her nuts from ATAI.Leaves. Curl up
Leaves. Color - Yellow
5y ago
1
2
Solved
GardeningWithBo
Is this normal new leaf color growth?It seems again that my leaves are a touch shiny, slightly curled down, and are a touch yellow. I water only 1 Liter every two days and do not use any fertilizer apart from coffee grounds and aquarium water which has slight minerals. Thanks for the help in advance6y ago
2
2