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Back to Grow Questions
is it cal def?
ganzigunnu
started grow question 2y 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 2y 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 2y 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 2y ago
and shows slow growth compared to others.
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Similar Grow Questions
Solved
GirthyGibbyGains
Yellowing plant
Why is my plant yellow? I thought nitrogen or magnesium or PH. But i tested everything and it is still yellow. I tried flushing and using no nutrients but didnt help. PH is good, tried giving extra nitrogen and magnesium. What else can it be?
Week 15
Leaves. Color - Yellow
3y ago
1
2
Solved
cezario
Discoloration leaves while in flower
One plant is showing discoloration. Got a suggestion it might be a nitrogen deficiencie. Wanted to get a conformation on this and if possible some help how to fix it,
Week 19
Leaves. Color - Yellow
3y ago
1
8
Solved
Scratchie
Nitrogen lockout?
I've yellowing bottom leaves and yellow top all over, is it nitrogen deficiency and nute burn?
Week 5
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
3y ago
1
1
Solved
JuicyFruit
On all 3 of my plants im getting yellowing leaves, big brown cripsy patches on the leaves and then when then yellow leaves weaken they fall off. i have flushed and changed PH to 5.7 and will now recalibrate ph pen. anyone want to weigh in? Cheers!
Week 7
Leaves. Tips - Die
Leaves. Dropping off
Leaves. Color - Yellow
6y ago
2
2
Solved
G_news
Cal def ?
Calcium deficiency? Iv been using cal mag for a while now one tablespoon for 3 gal bucket. Thank you
Leaves. Color - Dark-brown
4y ago
2
5
Solved
mapfrog
Week 7 Burnt Leaves?
You can see in week 7 that the right plant has some underdeveloped/burnt leaves and yellowing towards the top. Does this look more like light burn or a nutrient problem? I fed with Root's Bloom at the beginning of flower.
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
4
4
Solved
Hermes88
Still dying
last week Leaf miners attacked my plants and I fought them with neem oil. The parasites are gone but I don't understand why the leaf is still dying
Leaves. Color - Dark-brown
2y ago
3
Solved
Blackbox
brown spots on older leaves
The brown spots are appearing more prominently on the older leaves. Overall, the color of the leaves is rather light green compared to other grow diaries. What could I do to fix the deficiency?
Week 7
Leaves. Color - Pale
Leaves. Color - Dark-brown
8mo ago
4
10
Solved
AnKeGrow
Problemas con el PH y asimilacion de nutrientes, hojas bajas amarillas y caidas
Hola, he tenido problemas esta semana con algunas de mis plantas , hace un par de semanas se daño mi medidor de PH y parece ser que no estan asimilando bien algunos nutrientes , puede ser potasio, nitrogeno o manganeso, podrian ayudarme a tener un mejor diagnostico de mis plantas
Leaves. Color - Yellow
Roots. Other
Setup. Other
5y ago
3
3
Solved
mtd_3
Old leaves be okay to look like that?
One of the if not the oldest leaf on the plant. Removed it now and it was the only one. Imo its fine but i wanted to double check with you guys.
Week 6
Leaves. Color - Yellow
8mo ago
4
3
Solved
HappySkunk
Deficiency help
What deficiencies are these? I’ve flushed her, ph’ed her water and I’m giving her a good amount of nutrients - no nitrogen for the past two weeks I think. Is this just an age thing? I don’t need her to look perfect before harvest, but I’m afraid it’s affecting the bud maturity.
Week 13
Leaves. Color - Yellow
Leaves. Color - Dark-purple
Other. General questions
5y ago
2
2
Solved
EJBudz
Yellowing leaves with brown spots close to harvest
Is this yellowing normal as I approach harvest or is this something I should have been taking care of? If it is how could I?
Leaves. Color - Yellow
Other. General questions
3y ago
1
2
Solved
Dr_Big_P
Help needed.
Any suggestions on nutrient uptake let me know so I can adjust.??? Thanks any tips will do
Week 2
Leaves. Color - Yellow
4y ago
4
4
Solved
Sheldor
Yellow leavs in veg, bc of to much fertilizer?
All other plants that are treated according to the same fertilization schedule look good. This week I watered it with half a liter of water + fertilizer on Tuesday and one liter of water + fert
Week 2
Leaves. Color - Yellow
1y ago
2
4
Solved
Maskedcucumber
Brown roots : Is this Pythium?
Is it chlorosis, deficiencies, septoria, pythium ? calmag, iron, H2o2 or mycorrhizae needed ? What would you do to save the crop (preflowering stage) ? Thanks a lot for your help
Week 8
Leaves. Veins - yellow between
Leaves. Color - Yellow
Roots. Color - Brown
4y ago
5
5
Solved
Basementgrow05
Leave burn ?
Checked the whole plant these are the only 2 leaves that are like this the really bad one I could of spilt some recharge water on it and burned it but the other one seems natural what could it be ? Removed the really bad leaf
Week 9
Leaves. Color - Yellow
5y ago
2
Solved
JeyGanesha
È possibile questo??
Buongiorno amici growers,vedete come sono gialle le foglie nuove. è 3 giorni che l'ho passata a 12/12 e la sto alimentando con Advanced nutrient.stanno tornando Verdi. Advanced nutrient aiuta con la fotosintesi clorofilliana....tornano verdi....ma è normale?
Leaves. Color - Yellow
1y ago
1
1
Solved
CroqueMonsieur
What is this leaf showing?
Anybody knows what is going on with this plant? My first guess was nitrogen toxicity because of the leaves clawing down a week ago, but I am not fully sure anymore with how the leaves are looking now.
Week 6
Leaves. Curl down
Leaves. Color - Yellow
5y ago
3
1
Solved
Royalgorillaxx
1st grow need help
Don't know what went wrong.as i said first grow. Leafs are curling down and they have a dark green color on the tips.. I can see a little yellow also.. Should i worry?what can i so to fix it
Week 1
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
3
4
Solved
GooeyGuy
Bright Green new growth? Is Co2 to blame?
New growth is very bright green. Just introduced an in-line UV filter to help combat and bacteria in system. Also just turned on the Co2 system and got it up to 850ppm. Why is new growth so bright green? Could Co2 do this?
Week 5
Leaves. Color - Yellow
3y ago
1
4