The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
??
2020Grower
started grow question 5y ago
If the first picture has a cal-mag deficiency, what does the second picture have? Thanks in advance!
Solved
Leaves. Color - Yellow
likes
M_Littlefield
answered grow question 5y ago
Con el amarillamiento de las inferiores, tambien podria ser falta de N. Revisa el PH que no sea que te bloquee alguno de ellos.
likes
Complain
Selected By The Grower
MangoDudu
answered grow question 5y ago
Same thing more oriented on Mg than Ca
likes
Complain
Similar Grow Questions
Solved
OutForReal
Hello ! What so you think about my issue diagnosis ? What would be the best thing to do to treat her ? She was supposed to stretch one more week but she's flowering : what are your feelings about the incoming week ? Thank you for your input 😁✌️🏼
Week 7
Leaves. Color - Yellow
7y ago
1
3
Solved
Blabina
What kind of issue is it ?
What kind of issue is it ? Is it deficiency or leaf damage ? If deficiency, which one ?
Week 5
Leaves. Color - Yellow
4y ago
4
1
Solved
greenflipcali89
Did I give too much fertilizer??
So I decided to add in some soluble fertilizers. I gave it a 1/4 tsp (50% of recommended dosage) a couple days ago and noticed some yellowing of new growth on the bud sites. Is this a sign of excess potassium and phosphorus? I gave it Fox Farm Open Sesame (5-45-19).
Week 11
Buds. Other
Leaves. Color - Yellow
Feeding. Other
5y ago
4
3
Solved
EmberWeed
Leaves curling up and down and yellow leaves
What could be causing this?
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Yellow
3y ago
1
6
Solved
Tomdm123
Weird leaf
It seems one of my leaves has become very oddly curled up. It has very slight brown spots with a strangely curled up tip. As seen on Week3-day19. Can anyone identify some sort of problem like excess or deficiency of nutrients?
Week 3
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
2
Solved
Jhort
Is this lockout or some sort of deficiency? Soilless medium- using biothrive, biogrow, and cal-mag. Autoflower Lemond auto Prior to yellowing the plant looked very droopy for 2 wks. Roots look great
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
2
Solved
Chimken
How can I fix this lack of nutrients?
My current feeding water consists of: 1. 20 l of water 2. 40 ml of Canna Coco A 3. 40 ml of Canna Coco B Leaves definitely show something is wrong. What would you recommend to fix this?
Leaves. Color - Yellow
5y ago
4
3
Solved
Seratram
Scared of bud rot
So my last harvest last week had bud rot and I noticed my Royal jack has a lot of yellow leaves but I think she still needs at least one more week to grow. Could this be bud rot even if I don't see any other signs? Should I do an early harvest just to be safe?
Leaves. Color - Yellow
5y ago
2
2
Solved
The_Stoned_Samurai
EC too high and leaf yellow
EC 1.45 and some yellow leaf… I adjusted the soup by adding water to it and the new leaves seem to be pretty ok. Otherwise, all other parameters are good. It’s odd bc I followed instructions of the brand (Platinium Hydroponics) and the EC lvl is still kinda high. Suggestions?
Leaves. Color - Yellow
Feeding. Automatic systems
2y 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
2y ago
1
4
Solved
1stmanny
older leaves are turn yellow. should i top dress,
Hi Growers !! Is this normal for autos, there 64 days old, 21days to go, there in soil and the ph is 6.7 Dry organic Nutrient, most of the bigger older fan leases are turning yellow. I feed them around week 4-5, should I Top dress my Pots? and add a Lil more Dry Nutrient
Week 10
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
7
4
Solved
LordAzrael
I don't have a PH meter, just some test strips. Can anyone recommend an inexpensive meter I can get in the UK? There's a bit of yellowing on some leaves (see my diary entry on week 8) Buds seem to be developing a bit slow Should I switch from 24 hr to 20/4 or 18/6 ?
Week 8
Buds. Not fattening
Leaves. Color - Yellow
6y ago
2
3
Solved
EddieEd
Is this magnesium deficiency?
After some googling, it seems to match? But the yellowing on mine seems to be very concentrated just on the tips.
Leaves. Color - Yellow
4y ago
3
Solved
GanjaGartenZwerg
Mangel in der vegetativen Phase
Meine pflanzen in Coco Perlite haben immer am Anfang eine Mangel den ich mir nicht erklä
Leaves. Color - Yellow
2y ago
2
2
Solved
ROTORRIOT
Nutrient problem?
12 days old gorilla by fastbuds, what could be the problem?
Leaves. Color - Yellow
Plant. Other
3y ago
1
Solved
berlinbeginner
yellowing from the bottom. Help!
SD3 - Humboldt sour diesel F28 is yellowing from the bottom. Plant Info: I fed her with 900ppm biobizz nutrients,topdressed with worm castings and then sprinkled with diatomaceus earth to get rid of thrips. Any help is appreciated. Thank you.
Leaves. Color - Yellow
1y ago
6
4
Solved
Fallingthroughstars
Deficiency or lockout
Is this a simple N deficiency or a lockout? I gave her more N last feeding but nothing seems to have changed. still stunted and still bottom yellow leaves. Should I feed her a micro/bloom mix or flush her??! Her soil ph seems to be correct and ppm so idk if its a build up of salt
Week 8
Leaves. Tips - Die
Leaves. Color - Yellow
Plant. Stem - Red or purple
4y ago
3
3
Solved
BDar_medicine
how long does overwater recovery take, or is this something else?
lower yellow leaves to lime green leaves at the top. she got a little over watered i think and I started watering a little each 2 days. the last photo is 10mins before lights out so has a more pronounced droop. there's leaf claw too, and ph is around 5.2
Week 12
Leaves. Color - Yellow
5y ago
4
6
Solved
yungtimmy98
Poorly seedling
Hi is the latest pic uploaded showing overwatering? or is it something else?
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
1
2
Solved
QuiGonJib
Almost done
This is our first grow and we are in week 6 of bloom. Does anyone have an idea for the brother in the picture. He grew above the lights. We not sure how to handle it. Two leaves are to close to the light and turned yellow. Should we cut them away or leave them on it
Leaves. Color - Yellow
Setup. Lighting
4y ago
1
2