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
Is this a cal deficiency
Lhuxzzz
started grow question 5y ago
New grower in need of help. Give just water last feed Ph at 6.50
Solved
Leaves. Curl up
Leaves. Color - Yellow
likes
TheUk420Show
answered grow question 5y ago
Yes your spot on pal :) Just give her a flush for a few days then re introduce feed and you should be fine :)
1 like
Complain
Selected By The Grower
Mastro
answered grow question 5y ago
When u have a deficiencies think before if u are using fert, if u do it, probably its overfert that can cause different deficiencies like in this case try to wather for a week.
likes
Complain
Similar Grow Questions
Solved
caitbella16
Pluto Auto from Ethos leafs yellowing from bottom up? Help??
With yellowing climbing up from bottom to top mixed with brown spots and new smaller growth looks stunned about 5 days after giving a lil nutrients what would your opinion be on what’s going on here? Any advice helps, and thank you in advance. Pluto Auto week 6 day 2
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Other
5y ago
1
1
Solved
user5698
Leaves turning yellow and brown with sligh curl up
One of the lower leaves is slowy turning yellow and brown, i tried to fix the issue with a light dose of fertilizer but it did not help (affected area still spreading). I am growing in biobizz light mix and i'm at the end of week 2. does anybody know what is happening?
Leaves. Curl up
Leaves. Color - Yellow
2y ago
2
2
Solved
OldStonedScottishGuy
Leaf Curling and yellowing on three week old plant, how to stop this gettign worse?
I am getting leaf curling and yellowing on my 3-week-old Hulkberry plant. I suspect nutrient burn, even though I am using what was recommended by my local grow shop and also RQS's website. I have reverted to water only and raised the light higher. Anything else?
Week 3
Leaves. Curl up
Leaves. Color - Yellow
3y ago
4
3
Solved
RakiGrow
Leaves are drying up and turning yellow
Hello, Something bad is going on with my Hulkberry plant. I think it might be due to giving it to much fertilizer. Here is how it looked 2 days ago: https://growdiaries.com/grow-questions/42518-hulkberry-turning-dry-and-leafs-are-bending-up And the plant is going worse and w
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
2
Solved
Chubaka26
Help please! First time growing
If i put to strong fertilizer to my plant, some leafs gone yellow and fall out, how do i save my plant?
Leaves. Curl up
Leaves. Color - Yellow
Plant. Too short
3y ago
3
4
Solved
Smokeybbq88
Diagnosis.
Can someone diagnose this problem for me please. I'm putting it down to nute burn but would like a second opinion.
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
6y ago
2
4
Solved
StarfishSmallBatch
Magnesium Deficiency?
Is this plant suffering from Magnesium deficiency? I noticed some of the growth is yellowing and the leaves are curling upwards at the tips. The tips of the leaves is where most of the discoloration is as well.
Leaves. Curl up
Leaves. Color - Yellow
3y ago
1
Solved
Dreamchvser
End of Flower, Yellow and crusty leaves ok ?
Hey last weeks of flower and I’m not sure if it’s fine how they are developing, as I started flushing this week they quickly started developing yellow crusty leaves. Should I keep flushing them as I will cut them in 1 or 2 weeks or should I try to balance out missing nutrients?
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Yellow
2y ago
4
2
Solved
sweetkaya
Calcium Deficiency?
Some days ago i noticed what i think is a Calcium deficiency because i cut the CalMagXtra on day 14 when i started giving the base nutes. So I re-added it in the mix and adjusting the pH at6.0 but the plant is not recovering andnow even the 2°plant is showing that signs. Help pls
Week 3
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
Solved
comet9000
Week 7 of 8 for Black Maple, leaves yellowing rapidly. Should I be concerned?
Hello, This is my first grow. I am in early week 7 and leaves are yellowing rapidly. The genetics state that the flowering period is 8 weeks. I have watered the plant 3x a week. pH 6, 3tsp of fox farm big bloom per gallon (1x week). I was going to flush soon, but I am not sure
Leaves. Curl up
Leaves. Color - Yellow
Setup. Strains - Photoperiod
7d ago
1
3
Solved
HighTimes076
Some leave problems
Hello all, I have some leave problems and have no clue what this problem might be. I found out that the run out water was too high in pH level. Can anyone help me out ? Thank you.
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
2
Solved
FeebleSnane
Starting to fade? Or nutrient deficiency?
One of my plants has several fan leaves that are turning yellow/purple, and I can't tell if it's low on N or starting to fade. The plants are 2 days into week 5 of flower with a 9-10 week flower period, so it seems a little early for it to be turning colors like this.
Week 9
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-purple
1y ago
4
Solved
TsukinoKi
Let it grow or cut it out?
One of the seedlings isn't doing so hot. Should I just start a new seedling in it's place or give it more time? I've had a stunted seedling like this before in a previous grow and it ended up yielding a lot...
Week 2
Leaves. Curl up
Leaves. Wilting
Leaves. Color - Yellow
4y ago
1
1
Solved
ezgrows4anoob
Issues with leaves. Day 90 total, 30 of flower. Leaves have been getting more and more yellow the past week, with progressively more brown tips.
Vpd has been pretty close to ideal, the pot had 1 gallon less soil so could be missing out on some nutrients? Possibly Potassium? Otherwise not sure what it could be. Does not appear to be N deficiency because the leaves are affected from the top too. What should I do to fix this
Week 12
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
1
2
Solved
Ganjafarmer420flowers
Plant looks like its dying
Need help identifying this problem using autopot system ph was 6.2 but dropped to 4.2 not sure if cal mag issue I have added a bit of cal mag now using ghe 3 part with platinum pk
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Other
5y ago
1
4
Solved
fathermichael
Sudden Leaf Yellowing – Lighting Issue or Something Else?
Hello! Yesterday, I noticed the top leaves turning slightly yellow, but today it looks dramatic. Check the pictures—leaves are yellowing and drying out rapidly. It’s only affecting the central leaves, so I suspect a lighting issue, but I’d like to confirm before taking action.
Leaves. Curl up
Leaves. Color - Yellow
1y ago
3
Solved
Manijuana
Any ideas on what's causing my baby to yellow at the top? I think too much heat personally as ive been at a temp of 81. Root system is doing great! Any thoughts are welcome!
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
2
Solved
Bigbuds420
Curly leaves, help!
Upwards curling of the leaves, any ideas? Also not sure if theyre all abit leggy or if they are on track
Week 2
Leaves. Curl up
Leaves. Color - Yellow
Plant. Too tall
6y ago
1
Solved
SwissKush
What are my leaves telling me?
Is this light burn? Nutrient deficiency/excess? It is only happening on the top leaves, the lower leaves are just fine. The light is rather close to the plant, but she is outgrowing my tent. Thanks in advance for the help! I really appreciate it. 😀
Week 7
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
1
Solved
Nix91
Little brown spot and leaves become yellow
hi my leaves start to become yellow and some brown spot starting to appear and my leaves also begin to curl up on themselves and i wonder why. If someone have an idea it will be great thanks in advance for your help.
Leaves. Curl up
Leaves. Color - Yellow
4y ago
3