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
Hi fellow growmies, Could you identify my problem...
Qutro
started grow question 5y ago
Hi fellow growmies, Could you identify my problem out here please? Is it a heat stress or stg. else?
Solved
Leaves. Color - Yellow
likes
Rookie_grows
answered grow question 5y ago
Personally I would say nutrient lockout rather than one specific issue, check the run off ppm and Ph and adjust accordingly then feed at half strength. PK and calmag are both notorious for causing lockout in the medium
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Latestagecapitalist420
Yellowing of leaves Week 9
Help! Is it normal to have such yellowing Week 9? The buds are still green, but the bigger older leaves are quite yellow. Same strain different plant still very very green. Might be the difference between topping an auto and not topping an auto?
Week 9
Leaves. Color - Yellow
6y ago
1
2
Solved
TomatoGrower00
Leaf Issues
Hey all, my almost 5 week old Moby dick auto flower is starting to show some issues in the first week of flower. She got a dose of Veggie nutes 5 days ago, and a little bit of Bloom yesterday trying to fix it. Temps have been high and humidity low, would that cause this?
Leaves. Color - Yellow
2y ago
1
Solved
TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?
Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn. The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Sour_D
Many large fan leaves yellowing, tips of some leaves clawing, brown spots on 1 leaf
Hey guys, looks the the SFV OG is having an issue. Neighbor informed me today that she has some fan leaves yellowing and he said it just started today. Also brown spots. Temp is 75 and humidity is 40. Nute burn? Any ideas?
Week 8
Leaves. Color - Yellow
5y ago
11
3
Solved
Autogrowz
Yellow leaves
Some random leaves and some middle leaves and tops are starting to look like this. What could the issue be. Also one of them had a purple stem. They also have spots on them She is a Auto Flower. G13 strain. 55 days old and still hasn’t flowered My PH is correct.
Leaves. Color - Yellow
6y ago
3
5
Solved
Luxus15
Problem in my cultures and I can't find what they have.
hello, I have a problem on all my crops at the moment I can't understand all this could come.the last time I put RQS easy boost fertilizer in a seedbed. I water them as soon as the top soil is dry. I added bio nova X-cel 5ml/10l to my water. I really can't understand the symptoms
Leaves. Color - Yellow
Leaves. Other
4y ago
2
2
Solved
GreenEyez
Yellowing fan leaves - How to prevent?
🍂 Any suggestions on what to do with my yellowing most lowest fan leaves? My displayed nutrient plan is up to date and many pictures from past weeks to display the yellowing process (mid section of the plant). 🍂 I aim to water with pHd water of ~6,0-6,5pH. All help appreciated!
Week 9
Leaves. Color - Yellow
4y ago
3
6
Solved
Doomguy420
Leafs getting pale, spotted and dying in late flowering.
Fading very quickly, most of the big fan leaves are dying now. Day 66. Happened within a week. Is there something wrong? Been using only rqs pellets and the last 2 weeks some ekstra biobizz grow.
Week 9
Leaves. Color - Yellow
5y ago
3
3
Solved
hmstr22
White Widow day 42 looks like she lacks something
Hi, its day 42 (feminized white widow). My first grow. She is growing in a minigrow growbox on soil. since a few days old leaves turned yellow. also on the younger leaves the edges turn yellow and have some darkish spots. ph is ~6. any ideas? what kind of lack could this be?
Leaves. Color - Yellow
6y ago
2
4
Solved
Antidotes
Girl Scout Auto
Girl Scout Cookies Auto This plant is 4 weeks old why are the bottom leaves yellowing is the water level to high ? Ph is good
Leaves. Color - Yellow
4y ago
2
2
Solved
Waveform
Oldest leaves turning yellow
What could be the cause of oldest leaves turning spotty yellow on 3 week old plants? They got nutritients end of last week for the first time, but not that much.
Leaves. Color - Yellow
2y ago
2
2
Solved
flo_420
LIVE SOIL. too much nutes or not enough?
I think its toooo much nutrients from the live soil, and cold/dry conditions for too long. but someone else said it's lacking nutes? (I was sick, and they were a bit neglected for a bit.. ) using live soil, like I said more info in my diary thanks so much for any input 😊
Week 15
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
5
3
Solved
Greenlady
Whats going on with the leaves?
Haven't started with nutes yet. After this pic I repotted into 9l/ 2,37 gallon pot.
Week 3
Leaves. Color - Yellow
6y ago
1
1
Solved
EaRtH
Yellowing leaves - nutrient burn or deficiency?
Hey guys, it seems like my plants have some kind of problem. I'm in second week of flower with these autos and lot of leaves started to turn yellow and even purple with occasional spots. Im using Biobizz ferts with their nutrient schedule.
Leaves. Color - Yellow
Leaves. Color - Dark-purple
3y ago
1
Solved
MMSC16
Yellow Leaves Autoflower
Novice grower, Outdoor. Started in a 70/30 coco-coir to perlite mix. Forgot Worm Castings until 22nd June, implemented with top dressing of Gaia Green Power Bloom and All Purpose. Overwatered at stem for a week or so. I suspect it's either an N, P ,or K deficiency (nuteburn?)
Leaves. Color - Yellow
Leaves. Color - Mottling
3y ago
1
2
Solved
FullFuzzy
Upward curling of leaves
One of my plants has started to have it's lower leaves curl upwards & started to go a yellow tint that's harder to see in my images. Yellow tint is starting higher up as well I think, but the curling is only on the low leaves. Is it nutrient defficiency, heat stress, wind stress?
Week 4
Leaves. Curl up
Leaves. Color - Yellow
6y ago
1
2
Solved
bodhi
Light Spotted Leaves
I'm mid-late flowering stage on this outdoor Bubble Gum grow. Anyone got any ideas here? Not sure if it's nutrient based or bacteria. Thanks!
Leaves. Color - Yellow
6y ago
1
1
Solved
ThatFcukinChronic
What’s wrong ?
This plant has displayed this yellowing in a couple of its older leaves. It hasn’t gotten better with the exclusion of nutrients it doesn’t seem to be hurting the growth of the plant as it has continued to grow over the past week. Is this something I should be concerned about?
Leaves. Color - Yellow
Leaves. Color - Pale
5y ago
1
1
Solved
Jaygrow1020_autoking
Growing slow and spots on the leaf's
Fastberry not doing well. Can anyone tell me what I'm doing wrong
Leaves. Curl down
Leaves. Color - Yellow
Other. Other
5y ago
1
Solved
Killab1405
Yellow leaves
Got a few dead/yellow leaves at the bottom. Is this normal at 8 weeks?
Leaves. Color - Yellow
5y ago
1
1