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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
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Organoman
answered grow question 3y ago
Burning from over feeding. Nothing to do with calcium. 18/6 is best for cannabis, they NEED sleep.
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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.
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ganzigunnu
answered grow question 3y ago
and shows slow growth compared to others.
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Similar Grow Questions
Solved
BDar_medicine
yellowing fan leaves mid flower
i seem to get yellowing fan leaves mid flower. its is happening in this current grow in living organic soil. I have applied a little bio diesel (guano plus some other things) and gave her a little dolomite lime in case she needed cal mag. she is watered with remineralised RO
Week 10
Leaves. Color - Yellow
4y ago
3
2
Solved
Nivloc
First grow first problem
Double grape mephisto. In week 5 veg. Ffof & ffhf . Gave first light feed of GH trio + calmag 3 days ago this developed day after feed. Purple stems and yellowing leaves. Looking for guidance. I'm thinking nitrogen def. Or mag def but I have no Pryor exp to base this. Thoughts?
Leaves. Tips - Die
Leaves. Curl down
Leaves. Color - Yellow
1y ago
3
Solved
420pete
light bleaching
Why are my leaf tips getting bleached still? I have the light 18 inches from the canopy which is what is recommended for veg, and that's only around 400umol/m2s but the leaf tips keep burning. Temps are low if anything, consistently between 65 and 75 farenheight.
Week 6
Leaves. Color - Yellow
Setup. Lighting
6y ago
1
3
Solved
nonick123
Color amarillento en cotiledones
La Purple Lemonade #1, que está siendo la planta más lenta del cultivo, muestra una zona amarilla en los cotiledones y en la dos primeras hojas ¿Es algo importante o relevante? Esta semilla tuve que retirar la cáscara de la semilla porque brotó pero no se abría...
Week 1
Leaves. Color - Yellow
3y ago
1
3
Solved
ThcSrb
Spots on leaves and little twisted...
Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?
Week 3
Leaves. Twisted
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
5
Solved
Popeofdope
What can i buy to help these plants
What can i buy to help this plant get better. I am in the beginning of flower and one seems to have a calcium deficiency or nitrogen. Ones stupid and the other 2 are okish
Leaves. Twisted
Leaves. Color - Yellow
5y ago
4
Solved
Overgrotho
Yellow growth to be cut off?
Should I continue to cut off yellow growth as it appears?
Week 4
Leaves. Color - Yellow
5y ago
1
Solved
fiatchd
Yellow Leaves again
Leaves are turning yellow/brown again, should i give it a proper flush again?
Week 5
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
3
4
Solved
Saven
Week 8 Toof Decay Auto
What's wrong with the plant here? Deficiency? pH Problem? pH: 6.5-6.8 Watering: 1.5L every 3 days with Advanced Nutrients 3 part (4mL/L)+ CalMag (1mL/L) Light: 240W QB from Meijui at 18 inches
Week 8
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
3
3
Solved
Kagonisss
Foliar problem flower
I have thi foliar problem I think is p or k deficiency help me pls
Week 6
Leaves. Color - Dark-brown
4y ago
1
Solved
Marinik
Why leaves brown? (urgent)
Some leaves turn brown as in the photo. Leaves in the middle turn brown first, then bottom leaves. Now I try making larger lamp-to-plant distance and feeding less nutrients, but no good sign appears. Other conditions are stated in my diary. Why do you think it is?
Week 7
Leaves. Color - Dark-brown
5y ago
2
Solved
R4inBoW
Hallo, ich habe ein neues Bild hochgeladen auf dem ein Problem zu sehen ist, weiß jemand was die Flecken auf den Blättern sind und was man dagegen machen kann?
Week 4
Leaves. Color - Dark-brown
4y ago
2
3
Solved
rakasha681
Can I fix this? Kinda looks bad.
I think effed up... Not exactly sure how or how bad it is. I haven't fed in a bit and looked like a nitrogen def starting, so I fed half strength, and 48hrs later I have this. Can I fix it? I did fish water this morning. Calcium def?
Week 6
Leaves. Color - Yellow
3y ago
3
5
Solved
Splifflicious
Brown spots/yellow tips after accidentally breaking a blade
Hi! I accidentally broke an older blade from one of her leaves, and after a couple of days that leaf started getting brownish spots and slightly yellowing tips. Is this normal to happen after a broken blade and will eventually die off? Or is this any sort of deficiency? Thanks !
Leaves. Tips - Die
Leaves. Color - Dark-brown
Leaves. Other
5y ago
1
1
Solved
KnightRider
Yellowing leaves
Hi Growmies, im in week 7 of my flowering cycle, my leaves have started yellowing between the veins before turning brown and dying from the tip inwards. Is this a calcium deficiency? Or is it natural dying from the end of flowering cycle or something else? Please advise thanks ✌️
Week 16
Leaves. Color - Yellow
5y ago
3
4
Solved
Fishcake
Leafs drooping down slight yellowing
Hi my plant hasn't been looking happy for a while and I just can't get her to pray 🙏 again 29/10 flushed and fed the run off was 6.55 06/11 fed 2mlgrow per litre 1.2ml cal mag per litre
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
3
1
Solved
MBnVA
Help!! Deficiencies? Nutes? Progress?
Looking for advice on all! Yellowing from bottom up..they have a ways to go as I'm on week 6-7. I have the FoxFarm trio and plan to go about 1/3 of recommended dosage according to their chart..I started them but maybe early as I'm using FoxFarm soil and it might have been too muc
Week 9
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
4
3
Solved
Maggie_de_Block
Discoloration bud leaves
Anybody know what this discoloration is? Humidity was a bit too high so I'm hoping not some type of mold. The affected buds did get quite a lot of wind and light, so it might be light- or windburn? Any help appreciated!
Week 11
Leaves. Color - Dark-brown
4y ago
3
4
Solved
aBUDabove
Leaf Diagnosis Needed
I need help. Leaves are turning yellow at top of plant only. And only on American Pie. Not Northern Lights. I am using a Sonlipo SPC2500. Bloom mode. Is it possible to have lower ppfd levels and still get light burn? Thanks in advance.
Week 9
Leaves. Color - Yellow
3y ago
6
3
Solved
Growerxm00
Yellow leaves, what can it be?
Hello growers, I started to have some yellow in the leafs. Ph is 6,4, and I’m only using Hesi nutrients but low doses, and the climate is 22-24C and humidity 40%, what can deficiency it can be? Thank you Good grows! ✌️🏼🌱
Week 9
Leaves. Color - Yellow
5y ago
2
2