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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
CornerBud
Is my plant showing signs of Nitrogen deficiency?
Autoflower, day 40. Most leaves are in a yellowish-green tone or even completely yellow. I was mistakenly watering it with tap water, but when I noticed the yellowing, 1 week ago, I started watering with mineral water at pH 6.49.
Week 6
Leaves. Color - Yellow
2y ago
4
4
Solved
DonCostro
Brown rusty spots on a seedling
What could be the issue? I only watered with plain water pH 6.2, soil is canna profesional plus, fresh out of bag. check diary for more info.
Week 1
Leaves. Color - Dark-brown
3y ago
3
3
Solved
Ancient_Genetics
Lack of water or its something else.
Did it burn from nutrients, or was it due to a lack of phosphorus, or just because it didn't have water?. It seems to me that it is due to a lack of water, but a lack of phosphorus also occurs in a similar way.😄
Leaves. Tips - Die
Leaves. Color - Yellow
Other. General questions
3y ago
6
Solved
tiny_couch
Yellowing lower fan leaves, a few red stems; N/Mg deficiency or normal low leaf die-off?
Is this a Mg or N deficiency or are these leaves naturally dying off? Showing on only one of two plants so far. Appears only on lowest fan leaves. F20, 7L pots BioBizz AllMix and nutes (1mL/L Grow and 2mL/L Bloom). Temp/RH are good. Can't measure pH. Local soft tap water 7-8pH.
Leaves. Edges burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
5y ago
2
1
Solved
Cannabis_carlitos
One plant is lighter, showing signs of mites, smaller buds, and has brown tips! Please help! The other plant is so healthy vs this one. Thinking of cutting her down to save the other.. I do not want to but will if I have to
Week 18
Leaves. Color - Dark-brown
3y ago
1
2
Solved
SkatehouseFarms
Nute burn and yellowing I don’t have a ph pen/meter please help what do I do I’m using mearth coco/perlite and dr earth dry amends and worm castings
don’t have a ph pen/meter all I have is the general hydroponics ph drops I’ve been waterin at 6.3-.6 ph. my plant is having some yellowing nute burn and I don’t know what to do please help the I’m growin in mearth coco/perlite with dr earth 4-4-4 and 3-9-4 flower dry amends help!
Week 5
Leaves. Color - Yellow
Feeding. Deficiences
Feeding. Other
4y ago
2
2
Solved
OnBudNem
Is my plant missing some nutrients?!?
Is there any deficiency in my plants nutes? This particular plant has greenish yellow fan leaves, and i want to make sure I’m not missing anything. Does anyone know what this might be?
Leaves. Color - Yellow
Plant. Other
3y ago
1
Solved
Patillac31
I've noticed yellow on some of the leaves was thinking N or Fe. For sure had a soggy mess at the bottom of the pot. Any suggestions or advice? Thanks in advance
Week 5
Leaves. Color - Yellow
6y ago
4
5
Solved
Puff2much
Yellowing of leaves
Hi there I am new to growing my set up is 4x4 tent mars hydro tsw 2000 I have 3 autoflower in 3gal airpots growing with biotabs and the leaves are turning down and yellow please and thanks in advance I really appreciate any help
Leaves. Color - Yellow
5y ago
1
5
Solved
helpmamagrow
Yellow tip and leaves
I’m not sure what’s going on here? Help!
Week 10
Leaves. Color - Yellow
5y ago
2
1
Solved
pawwonee
Think is iron deficy help me
Hello i have a problem with theese plants someone can help me ?
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
2
Solved
Fishcake
Ph/defiancy/ruined
right I think my ph is off so I've fulushed the plant with water at 7.2 and the run off was coming in at around 6.4 if I feed them at 6.4 will that fix the problem I k ow its already a bit late aswell check my diary for more info I have multiple plants like this but not as bad
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Other
5y ago
2
Solved
Fordsie
Phosphorus def in veg?
Phosphorus deficiency in wk 4 of veg? I noticed a few small discolored blotches on lower leaves 2 days ago and today it is a lot worse! Use flora trio, and 2 other plants in this run are under same conditions with same nutes. Could this be a pH issue? PH has been consistently ~6.
Leaves. Curl up
Leaves. Twisted
Leaves. Color - Dark-brown
5y ago
1
2
Solved
Filiaes
Grey leaf tips
Booth plants are showing some kinds of burn and I am not sure if it is nutrient burn or light burn or if there is something missing. Looks a bit like MG deficite but shouldn't the plant take that from the soil in that state and age?
Week 2
Leaves. Color - Yellow
Leaves. Color - Black or grey
Feeding. Deficiences
2y ago
5
5
Solved
laberg
Possible toxicity or deficiency?
I saw this on one of my bottom leaves this morning. Hopefully someone can give insight of what it might be. I'm concerned that it is phosphorous deficiency. I didn't notice it a day ago, but I wasn't looking closely. 2 days ago I watered her (540 mL, 1/4 tsp nutrients). Thoughts?
Week 3
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
5
Solved
420pete
Any ideas to what might be causing these leaves to yellow/die? Only reasons I can think of are nutrient lockout, having the lights too close (although I've heard with CFLs theres pretty much no such thing as too close) or possible having the heater running, or constant fan air
Week 3
Leaves. Color - Yellow
7y ago
5
7
Solved
EXZELENS
What kind of deficiency is this?
It has been like this for 5 days or so. It looks to me like Iron deficiency but I don´t think that´s probable. I flushed her in order to get rid of salt excess but she didn´t recover any. TIA
Week 9
Leaves. Color - Yellow
5y ago
1
2
Solved
Denzul
After noticing calmag deficiency in some other ladies I preventativly hit everyone with cal mag. Few days later see yellowing on leaves (pic above). Could they need more cal mag? Also looks like could be nitrogen deficiency? Thanks for any help with this issue.
Week 7
Leaves. Color - Yellow
7y ago
1
1
Solved
nukls
light yellow tint on leaf
Any thoughts on the leaves color having a light yellow tint at this stage?
Leaves. Color - Yellow
5y ago
2
Solved
EaRtH
Seedlings tips yellowing
Hey guys, I have noticed that one of my plants starting to show yellowing on the tips of first leaves. I guess I am overwatering. Any advices ?
Week 1
Leaves. Color - Yellow
2y ago
2
3