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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
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.
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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
EVERYTHINGFRIEDISGOOD
Is color always change when flushing ?
Is leaves color always change when flushing ? . I flushing my plant with pure water for 5 days in DWC System . but leaves color no anything change.
Week 9
Leaves. Color - Yellow
4y ago
3
2
Solved
igglepuff
small bud leaves yellowish on 1 plant
2nd.. 1plant (same schedule as other 2 mains has almost yellowing leaves around bud sites and has always seemed to have shown the same color since the first few weeks. what can be causing this? the other 2 plants don't have the same issue and are around the same heights also
Week 6
Leaves. Color - Yellow
6y ago
1
1
Solved
KurtThePlantGuru
Is this a deficiency or burn?
I have 2 new, 2 week old seedlings in my grow room and the bottom first set of leaves is yellowing at the tips to like half way up. Their not as green as the new growth.
Leaves. Color - Yellow
1y ago
2
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Solved
Clout_god67
Organic peat control
I think my plant is being eaten but gnats and it looks like nutrient damage on it but I haven’t given ANY nutrients to it. What should I do? Can you diagnose my plant? Any remedies? I heard cayenne pepper can be used for a pesticide is there other things? Does Neem oil work well?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
9
8
Solved
Faegrows
Is this Nitrogen deficiency?
Is this Nitrogen deficiency? Mainly the lower leaves colored light green into yellow and just burst off. Now a few bigger leaves thought the plants are following the same pattern.
Leaves. Color - Yellow
3y ago
3
9
Solved
Albgrow
Nutrients problem!
Any one can explain this? I'm in 3 week of veg and I'm using Advanced nutrients; Grow 1ml Micro 1ml Bloom 1ml B52 0.5ml Mother earth 0.5ml Tarantula 0.5 Piranha 0.5 Voodoo juice 0.5ml Ppm 635 Ph 6.1
Leaves. Twisted
Leaves. Color - Dark-brown
Leaves. Other
5y ago
2
5
Solved
WhackyTobaccy
Help validating what this is
My plant seems to have developed some kind of deficiency/excess. I researched and think that it's CalMag deficiency, added CalMag to my nutes (1ml/l). Just wanted to check in with the experts here to get a second opinion. The growth seems slow I'm afraid I may have stunted her 🤦
Week 2
Leaves. Color - Yellow
6y ago
1
2
Solved
timbarin
Brown yellow spots
Yellow spots on leafs and crispy ones as well. Added calmag I think it heat related. In continued storie from last week.
Week 8
Leaves. Color - Dark-brown
6y ago
2
Solved
MissGreenEyes
Seedling leaves are discolored and starting to curl
Not sure what the issue is here. You can see it evolving over the past few days (Sept 29th - Oct 2nd). The leaves are discolored, light, almost yellowish in color. And one is starting to curl. There are clear images of this in the post above. What's going on here? Thank you!
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
4
Solved
Cannabis_Ninja
Weak yellowing leaves in middle of flowering
I clicked resolved instantly by mistake but if anyone else has any other suggestions, go ahead
Week 16
Leaves. Dropping off
Leaves. Color - Yellow
3y ago
1
2
Solved
RaverKushAndHaze
Hola lo siento noto que esta planta tiene una parte superior ligeramente amarilla. No sé si se debe a la leve quemadura que tomó hace unas 2 semanas oa la falta de microelementos. He estado viendo esto durante más de una semana y no ha empeorado mucho. cuando tuve escasez de micr
Leaves. Color - Yellow
5y ago
1
1
Solved
Kmurr07
Too late for epsom salt spray?
Is it too late to use epsom salt as a foliar spray for my potential mag def? Also unsure of how much long I actually have until chop All plants were flipped the flower the same day on April 28.
Week 9
Leaves. Color - Dark-brown
3y ago
2
Solved
XanHalen
Yellowing… why, N, maybe Mag….😭
1/4 plants yellowing it’s the biggest and is the only one that fell victim to a topping in veg, N def? The interveinal stuff is making me think magnesium too? What y’all think…
Week 7
Leaves. Color - Yellow
4mo ago
2
6
Solved
Katalist
What could possibly cause all this suffering? =(
Does anyone know what could be the cause of this? the plants suffered from white flies which I am trying to get rid of.
Week 10
Leaves. Color - Yellow
4y ago
4
3
Solved
Mrgrecoa
Not good growth yet 3 weeks and its very small
Im not understanding the low rate of growth
Week 3
Leaves. Color - Yellow
Plant. Too short
5y ago
1
Solved
Carpe_Diem
The most common yellow leave will be found on the terminal stage of flower because plant will power up for flower produce rather leave grown. Leaves are most of the time a reservoir of H2O nutrients and minerals. Yellow leaves can apear on you plant at some point of grow?
Week 10
Leaves. Color - Yellow
8y ago
4
2
Solved
BigBaby420
Yellow spots
I noticed some yellowing on some of my leaves. I did some research and think it may have been lead septoria. Not sure. Posting pictures... during defoliation I got rid of them anyway
Week 6
Leaves. Color - Yellow
5y ago
2
1
Solved
BosHerbs
brown/bronze marks
Quick question, i notice some brown/bronze spots on all 3 plants. Is that a cal mag issue?
Week 3
Leaves. Color - Dark-brown
4y ago
2
3
Solved
hooolian
Yellow Borders and Curling inwards slightly?
Some of the new leaves on 3 plants have got slight yellow borders and are curling inward slightly (please see third pic in this week) - is this due to over watering, nutes? or something to do with humidity? Many thanks!
Week 4
Leaves. Curl down
Leaves. Color - Yellow
4y ago
4
4
Solved
BongRip
1st Week Problem
My plants are in day 7 and I noticed some problems with it. A new set of leaves is coming out yellow in one of my plants and also I am seeing some spots on 2 other plants. They are under 200cfl with the distance of 6 inches. Temperature goes up to 85'F sometimes. Help out pls!
Leaves. Color - Yellow
5y ago
4
4