The Grow Awards 2026 🏆 
What deficiency
wazzaaaapstarted grow question 1y ago
What that could be?
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Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
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Siapooka
Bottom leaf turned yellow with brown on edgeHello this is my first grow and had noticed a leaf turned yellow with brown spot on the edge. This is a northern light auto just kicking off with her flowering. I use advanced nutrients 3 in 1 micro grow and bloom and that's all I've ever used. I suspect a nitrogen deficiency...?Leaves. Edges burnt
Leaves. Color - Yellow
5y ago
3
2
Solved
FishOil
Yellowing LeavesI'm concerned my plant may be prematurely yellowing. I've added Cal-Mag to see if that would help with the yellowing of leaves, but the issue persists. Yellow leaves are moving progressively higher up the plant, but my other strain is not presenting same problem. (See Post)Week 18
Leaves. Color - Yellow
4y ago
4
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CreamOfTheCrop
Possible deficiency/humidity/pH problemI've been struggling with same problem from beginning of grow - leaves having these dry yellow/white spots. The first week I used too high pH which later I replaced by rainwater - new leaves were healthy, but last night I left tent at 70% RH. Somehow it returned - still rainwaterLeaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
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Ksouth1
Nutrient burn from Fox farm soil?Has anyone else ever have a sativa auto get nutrient burn from fox farms ocean forest soil? Gave it the first dose of GHE Flora series bloom nutrients at 1/3 strength only once and that was around 10 hours ago. Didn't see the burn on the tips of the leaves at the bottom.Week 6
Leaves. Tips - Burnt
5y ago
2
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HoneyBlunt42
turned yellow, what's the problem?The big burdock at the root started to turn yellow a couple of days ago, the tip is drying and bending. This is a deficiency of phosphorus and potassium on the 45th day from the nut (7th week) - or am I wrong? How to fix it?Week 7
Leaves. Color - Yellow
1y ago
4
4
Solved
Dreadnug
Is this Calcium deficiency?Hello
Wondering if anyone might confirm what I am seeing....I've read that this might be a Calcium deficiency, does this look familiar to anyone? I appreciate the feedback.
Natural/Super Soil
RO & Soft Well Water feed with regular nutes
Room temp - upper 80s w/ CO2 rain3y ago
1
1
Solved
MiistrH
Slight lightburn?First pair leaves on left plant turn slightly lighter, first sign of yellowing a bit. Also I think they are a bit in a V/praying shape.
2 full weeks old under 75% of 200W leds about +-45cm. Should I dim them a bit more/hang higher?
Other suggestions maybe?Leaves. Curl up
Leaves. Color - Yellow
1y ago
4
Solved
Stolas2
Yellowing and crisping leavesHi
Really need some help with pics below leaves are yellowing snd crisping. Not sure if it nute deficiency.Leaves. Edges burnt
Leaves. Color - Yellow
4y ago
1
Solved
romi27
They say yellowing is normal, but this much?Not sure what to do. First time with autos, and they're around 69 days old. Breeder says 60-70 days mature. Used living soil. The yellow has climbed both plants yet the trichs are only 15-20% amber. Will my girls be okay? What kind of TLC can I give them until harvest? Noob hereLeaves. Dropping off
Leaves. Color - Yellow
4y ago
4
4
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Green_Coffee
Name the deficiency.Problem is mainly occurring on leaves near the top, but not the newest growth. Initially are less green, then start to yellow followed with brown spots. The oldest leaves near the bottom are seeing some effects, but as acute as the mid-upper leaves. Curl likely due to warm tempWeek 4
Leaves. Color - Yellow
5y ago
1
Solved
Nico6426883
I couldn't solve the problem, helphello everyone auto amnesia haze's are in their 9th week. What is the problem with the leaves? Thank you for the answers.Buds. Too few
Buds. Other
Leaves. Color - Yellow
2y ago
4
Solved
FatnastyzBudz
P lockout mid flower coco ph dropMidflower lockout P starts, cal/mag is in line up. Week 3-4 runoff ph drops 5.2-5.3 then P. I follow success feed chart. Adjust feed to match intake but salts starting to stack and lockout. I have added add cal/mag. Maybe too dry, but still happens. Last feed 1050 still stackdLeaves. Edges burnt
4mo ago
3
3
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supermegadjj
Leaves yellowing, purple stems, brown spots. HELP Please /first grow speed autoPlease help guys !!!
Since yesterday ladies started to look less and less healthy. Leaves are yellowing, leaf stems are purple and generally it's progressing quite fast. They got a flush with filtered ph water and I fed the with 1 l each oF very light mix.
What should I do?5y ago
3
3
Solved
Dr_GrThumb
1st time grower - nute burn? Lockout? Potassium def? Light burn? HELP PLEASEExperiencing some deficiencies/light burn/heat stress. Says SSH likes hot/moist climate. Plants are planted in FFOF Soil, fed them 15oz of nutes yesterday. Using advanced nutrient systems, see above. Light is a SF1000 LED meant for a 2x2 tent. Would that burn them hanging at 20”?4y ago
6
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