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
what Is that?
MedUs_0o
started grow question 6y ago
deficiencies or excesses of potassium or other?
Solved
Week 10
Leaves. Color - Yellow
likes
MadeInGermany
answered grow question 6y ago
Hi your ph on earth fits I would even go down to 6.0 - 6.2 :-) but how high is your ec? otherwise nobody will be able to help you, and we also need their watering behavior :-)
1 like
Complain
Selected By The Grower
NobodysBuds
answered grow question 6y ago
if following your nutes instructions, i bet it's a toxicity. seems to be a trend.
likes
Complain
Similar Grow Questions
Solved
kansasscott725
Fan leaf deficiencies during flower. To cut or not to cut?
Day 85 Update: G13 has a ton of fan leaves turning fast. Pretty sure it's a PH issue. Should I wait until they're dead to trim them off or get rid of every fan leaf that is affected more than 50 percent of the leaf?
Week 12
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
2
Solved
4lbi4
Anyone know what it could cause the yellowing leaves in the gelato?
Week 7
Leaves. Color - Yellow
3y ago
5
2
Solved
CY-GENETICS
Apple Strudel something is wrong
My 9 day old auto seedling looks kinda weird, havent fed anything the soil is biobizz light mix. could it be that watered dropplets on the leaves and the led burned them or is it a nutrient deficiency Its my 1st like actual grow so any help would be amazing.
Leaves. Twisted
Leaves. Color - Yellow
4mo ago
3
2
Solved
BakedPanda
Leaves Yellow-ish, Is My Harvest A Goner?
Yellowing Leave (see Day 32 Photos) - Noticed a few leaves are yellowish on their tips & pointing downwards - I'm getting quite worried on whether this means they have: Nute burn? Light burn? Any tips or advice, is my plant ok? In soil (premium planting mix) w/ 20% perlite
Week 5
Leaves. Color - Yellow
5y ago
7
3
Solved
janno
Leaves are pointing up and have yellow stains on them. (8 days from popping above soil)
On day 8 of my seeds popping from the soil, I noticed the leaves are pointing up and have yellow stains in the middle of them. Anybody know what this can be?
Week 2
Leaves. Color - Yellow
4y ago
6
3
Solved
NanoGrows
Damaged fan leaves
Hello, I can't understand why some of leaves are loosing colour at the tips. Sunday I mixed the nutrients, it was at 6.3 so I did not adjust. Today risen to 6.4.
Week 4
Leaves. Tips - Thick
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
2
Solved
Peweez
Could someone help me to identify the issue my plant has?
This girl isn't looking healthy anymore and I need to figure out why. What I did: I topped her pretty early but she recovered well (you can see it in my grow diary). A week later I transplanted her from 0.5L pot to her final autopot 14L. After that she had a hard time recovering.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
2
3
Solved
torquesan
Need some help asap
What is wrong with her? :( I am assuming N Deficient, but I also have veeeeeeerryyyy lightly burnt tips so it is confusing to me. The lime-greening of the leaves makes me think N Deficient though.. Any thoughts? I have some new nutes on the way should be getting here tonight too.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
3
5
Solved
JeremyBeadle
Yellowing and dry/brittle leaves
Hello all, I've noticed the leaves are starting to yellow and some are getting quite dry/brittle. Is this a sign of overwatering or perhaps nitrogen deficiency? It is on the same watering schedule as my other plant which looks healthy but obviously has different genetics.
Week 10
Leaves. Color - Yellow
6y ago
8
6
Solved
BavarianBarbarian
Week 8 (4 weeks into flowering) - Possible Nitrogen / Cal-Mag issue?
Plants show signs of what i assume to be a deficiency. Stopped feeding nitrogen Week 7 according to schedule. Symptoms are not on every leaf but some the upper foliage. Yellowing, burnt tips and rusty spots. My guess is lack of Cal-Mag & Nitrogen. Is my guess correct?
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
2y ago
3
3
Solved
aBUDabove
PH? Nute Burn? Solution?
I am trying to diagnose thus problem. PH going in is 6. Very light on nutes. Thanks for the help. Plant overall seems to be slowly yellowing?
Leaves. Color - Yellow
3y ago
1
3
Solved
JARhead907
Is this a magnesium sulfate deficiency? Or light/ nutrient burn?
Not sure what exactly is happening 🤔 anyone got any ideas love to hear suggestions!
Week 8
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Color - Yellow
1y ago
2
Solved
Beccabud
General health
Advice please just on wether it's looking healthy. :) I've been too careful with watering and some leaves turned yellow. Feeding 1 litre every other day but maybe that's too little? Stopped with the Biobiz fish and switch to growbloom. Leaves at the top look droopy still?
Week 4
Leaves. Wilting
Leaves. Color - Yellow
Feeding. Schedule
4y ago
6
6
Solved
Poppetnewbie
nutrients ?too much
I got a little bit ahead of myself (not 1st time with autos) but I got a bit egger on the nutrients knowing that I shouldn't and I skipped my enhancer growth and went straight to enhancer boost🙈 why oi why ?? So I've backed up and now I've added the N section back into my N.P.K
Week 5
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
2
2
Solved
Ex0du5
Flushing in coco
How do I flush a 3 week old plants grown in coco/perlite mix. It seems like I got nutrient lockout Does the water need to be PH balanced or regular tap water( tap water sits at 7.5) and I grow them in 12L pots I hope flushing won't hurt there little roots
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
1
2
Solved
the_canna_scientist
Fast-growers starting to show issues.
Got some issues on these fast growers. I've been treating it as a cal-mag deficiency, however I've been feeding calmag for two weeks and its only getting worse it seems. Any thoughts? PH is 6.0-6.3, PPM 444 feed, RH 47-50%, Temp 77-81f.
Week 5
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
3
2
Solved
grow_it420
Yellow leaves
Hi Growers, Is this calcium deficiency? I'm not sure, and only one of my 2 white widows show signs of deficiency. Thanks
Week 11
Leaves. Color - Yellow
6y ago
4
4
Solved
Voltron1
Yellow leaves?
Any thoughts on the yellow leaves? Maybe nitrogen deficiency?
Week 6
Leaves. Color - Yellow
6y ago
2
Solved
PeppaWutz
Yellow leaves at lower part of plant
Hey! Two of my bigger plants have some issue. The lower leaves turn yellow really fast and fall off. The others are ok but have a really small nute burn. What is this?
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
1
1
Solved
Costosito
Hojas se amarillean o queman bordes
Desde hace unos dias noto que las hojas de la planta se amarillean o se ponen como en la foto no se si puede ser algun tipo de carencia o falta de alimento ya que no la di mas desde la ultima vez y a cogido un color mas claro
Week 14
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
2