Threads is in beta — try the new feed
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Threads
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 it cal def?
ganzigunnu
started grow question 3y ago
all identical environment only single plant do this. I gave plain water.
Solved
Week 4
Leaves. Color · Yellow
Leaves. Color · Dark-brown
likes
Organoman
answered grow question 3y ago
Burning from over feeding. Nothing to do with calcium. 18/6 is best for cannabis, they NEED sleep.
2 likes
Complain
Selected By The Grower
ganzigunnu
answered grow question 3y ago
i fed only plain water. i give low ppfd first month 24h than 18/6. my ppfd so far doesnt exceed 15-20 dli. i make it to stabilize room temperature.
likes
Complain
ganzigunnu
answered grow question 3y ago
and shows slow growth compared to others.
likes
Complain
Similar Grow Questions
Solved
RRuffin
Blattprobleme bei Pflanze (Wahrscheinlicher Kalziummangel?)
I have 2 plants in the tent and one of the plants is showing quite a few deficiencies. Many leaves are now yellow with brown spots. The other plant doesn't have these deficiencies, both were watered the same, etc. A few days ago, I used dolomite lime and worm castings.
Week 11
Leaves. Edges burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
1y ago
7
4
Solved
Stixere
Leaves
What can be wrong and what should I do?Biobizz fertilizers(Grow, Bloom, Topmax). 6 weeks.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
Solved
Grazynka
Flush or what to do ?
Advice please. I watered yesterday but the stains on the leaves are getting worse. Now I don't know if it is deficiency of cal n mag due to nutritient lock out which might be due to ph being off as I have 5 reders and all of them show a different thing. 🤦♀️...or it is it rust?
Week 7
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
1
1
Solved
Dawel
Puntas y bordes amarillos/marrones ¿Carencia de Potasio?
My plant started flowering about 2 weeks ago and I noticed that the tips of the leaves are turning yellow, the older leaves have become somewhat pale, and the tips are going from yellow to brown. There are also brown spots on the medium-aged leaves. K deficiency?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
4
3
Solved
Grishka
Can you identify the issue?
Leaves turning yellow and brown and curling at the tips
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
Solved
Coconut_kiss
Rusting leaves since week 9
Affected leaves on top. Rusting leaves,some have purple stems,week 10 check out diary for more info also some bottom leaves have been dying off
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
1
2
Solved
Powerplant
Yellow and crusty leaves
Hey dear community, Why is my plant not recovering? I even adjusted the ph of the watering and add cal mag. Every week it’s getting worse and I don’t see any improvement. I use the fertilizer from Bio bizz and light is far enough away from the plant. Temp and humidity are fine
Leaves. Edges burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6mo ago
3
3
Solved
zaMaurice
Hey, on my biggest plant, the leaves are starting to turn yellow from the outside and getting brown spots. Is that a sign of over-fertilization? All the other plants don't have this. Or is it too little?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
3y ago
2
2
Solved
Jake13255
Browning leaves? Did a soil slurry and dropped the water from 6.8 to 6.2. Does that mean it’s locking out? How should I go about fixing this? In peat pearlite and worm castings. Added about 6 cups of lime to the 20 gallons of soil thought that should have helped the ph?
Week 3
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
1
Solved
koronkonko
What is this symptom?
Have a symptom of something that I could not understand. Started with yellow color from the edge of leaves, suddenly become a brown/yellow color and top of the leaves dried too fast like burned. any ideas? under plant: pH 6,6; EC 1,7;
Week 7
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
1
7
Solved
KabakciLar
my daughters leaves turn yellow early
my daughters leaves turn yellow early
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
4
6
Solved
Wannabean
PH problems
High Again! I still go the soil ph problems (4.7) my diary is fucked up so dont go after this weeks diary. dolomitic limestone?
Week 9
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
1
1
Solved
uktuk
Calcium / PH issues? Did I take the correct steps?
Am I on the right track to remedy my plant's issues? Seems like calcium deficiency to me. Soil test comes in at just under 6.5, my reservoir water going in is 7.3ph, in case its actually a lack of calcium and not the PH i've top dressed gypsum (and epsom salts).
Week 7
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
2
3
Solved
Kluless
Yellow brown leaves
Amateur HELP Baby looking very unwell. week 3. Leaves yellow / brown. Normal soil led light 60cm water 1L a day with nutrients.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
1
Solved
Fishcake
Could anyone help me fix this
I've been feeding at 6.4 3ml per l grow 1.5 ml per l cal mag iand just 1 ml per l bloom as I was going to flower in the coming week
Week 9
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
4
2
Solved
fiatchd
Leaf problems
I think I did use too much fertilizers, whats happening here? https://growdiaries.com/diaries/180523-grow-journal-by-fiatchd
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
3y ago
2
5
Solved
Dday314
Calcium deficiency?
Hello Everyone. The Fan leaves at the top and Middle have brown spots, I use RO water and feed with Fox Farm Tiger Bloom..Everytime I feed or Water I have been adding 5 ml of Cal Mag Ph 6.4 feeds right at 900ppm . NL auto week 4 flower. Thanks in advance. Wash your hands 👍
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
1
Solved
Wackytabacky_420
What wrong with her?
So my girl has an issue can someone give me a hand? Pineapple auto.
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
5
2
Solved
KINGT88
Leaves changing colors
Leaves are starting to curl down on one plant. Another plant the leaves are changing colors as shown in the video, what am I doing wrong? First time grower.
Week 4
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
1
5
Solved
BrannabisTHC
PH problems?
Hey growers! These purple haze is in their 2nd week of flower. Only one of the two phenos are showing these symptoms. What might have caused this?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2