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Back to Grow Questions
Seedling
the_growbot
started grow question 5y ago
Help! Anyone know why this gsc seedlijg is curling and turnin hard?
Open
Leaves. Color · Black or grey
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Answer
closetGrow
answered grow question 5y ago
Put a plastic bag over it, it looks like it could use some humidity.
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Complain
Mikewithgreenthumbs420
answered grow question 5y ago
How close are your lights sometimes that may be caused by to power from leds
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Similar Grow Questions
Solved
HierroYOlivia
Dark tips
it seems to me that the tips of the leaves have a very dark color, it looks like an excess of nitrogen but in three weeks I have never fertilized and the only additions to my biobizz light mix are a sprinkling of guano kalong and 10% of worm humus biobizz.
Week 3
Leaves. Color · Dark-purple
Leaves. Color · Black or grey
6y ago
4
3
Solved
Prilyfe13
Gray leaves on buds with a massive concentration of trichomes. What is it?
No clue what this is. Light gray leaves, tons of trichomes. I'm a bit confused here. Should I just cut the buds that look like this to be safe? Or is this normal?
Week 12
Leaves. Color · Black or grey
3y ago
6
8
Solved
Australianbuds
Leaves turning funny
Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf
Leaves. Color · Black or grey
3y ago
1
1
Solved
Mcnuffy
Leaf colour black
Week 5
Leaves. Color · Black or grey
3y ago
8
4
Solved
timbarin
What deficiency do you think I'm dealing with? These are old fan leafs.
Week 13
Leaves. Color · Black or grey
6y ago
4
2
Solved
darbyog
Black marks on leaves of a slow grower.
Noticed there's black markings on the edges of the leaves on our slowest growing plant. My initial thought was water droplets sitting on it before it had fully broken out or could it be something else?
Week 2
Leaves. Color · Black or grey
6y ago
1
1
Solved
mushimushi
Deficit or excess? Or what
What happen
Leaves. Color · Black or grey
4y ago
1
5
Solved
totemas69
Leafs dying off yellow/dark brown/ black
Leafs slowly went from yellowish to yellow green dark brown black not sure whats causing this im not measuring ph so that could be first step to solve i guess cal mag P deficiancy????? definitely had some light burn as MH fce 3000 goes to max when its on 80prc lesson learned
Leaves. Color · Yellow
Leaves. Color · Black or grey
Plant. Stem · Red or purple
4y ago
2
4
Solved
Frnikola
What to do? → BF Runtz Auto - Day 42 - RH70, 80F in BioBizz Light Soil
On my last post, I was advised I have N tox, so I watered w/o BioGrow, just BioBloom and it's gotten much worse. The runoff EC was 1.5 (watered with 0.8, runoff pH was okay), so I’m guessing it's salt buildup. I plan to flush when this watering dries out—any thoughts?
Buds. Not fattening
Leaves. Color · Yellow
Leaves. Color · Black or grey
2y ago
1
Solved
portcityplug
Flower development
I'm starting my week 3 of flower I'm starting to notice inside of my canopy some of my leaves in Bud sites are getting very wilted and going black could this be the start of a mold or is this a natural thing should I remove anything that looks like this ? Also my humidity is 70
Leaves. Color · Black or grey
6y ago
1
1
Solved
Bizio
Yellow leaves with grey/dark outline
I have some yellow leaves with grey/dark outline. Do you know the cause? Could be the humidity level too low? or K deficiency?! I'm not so sure about the last one. Help me guys please.
Week 11
Leaves. Color · Yellow
Leaves. Color · Black or grey
6y ago
2
3
Solved
Ner0z
Black discolouration on leaves
Okay so the problems with the black spots continue only on one plant. I tried reducing nitrogen and increased calmag to 4ml/g. I defoliated the affected leaves and sprayed with baking soda mix. 3 days later they're appearing again. If I don't get this fixed soon im gonna lose her
Week 2
Leaves. Color · Black or grey
6y ago
2
3
Solved
Maskedcucumber
At what stage do leaves get darker ? This is confusing
I overwatered them at the beginning of veg and then I fed them with 0.7 ec nutes max, EC would go up if I gave more. I've had tips burning probably from light too close. I find that leaves are pretty dark but it may be because of the strains. When leaves do get darker in flo ?
Week 9
Leaves. Tips · Burnt
Leaves. Color · Black or grey
4y ago
3
4
Solved
BigGing432
Nutrient Burn, Leaf Septoria, Nutrient Deficiency? Or something else?
I have been having issues with the Purple Haze. I've tried adjusting the Temperatures, adding additional Cal-Mag, changing lumen intensity etc. I believe this may be nutrient burn? Added an old image of leaf before mainlining, the plant is 1 week old after mainlining was done.
Week 2
Leaves. Color · Yellow
Leaves. Color · Black or grey
Roots. Too few
6y ago
3
3
Solved
NicoKh
bad leaves
Some leaves in a bad looking don't know why, i think is overfeed or smthn what do you think? them are on the middle of the 5th week of flowering
Week 9
Leaves. Color · Yellow
Leaves. Color · Black or grey
5y ago
2
2
Solved
MEDICAT
What happened to the leaves?
What happened to the leaves? Was it caused by too much water? (Coco ph5.8)
Leaves. Color · Black or grey
5y ago
4
3
Solved
Smokeyboar
If a plant has cal and mag and phosphorus def how do you correct these
If a plant has cal and mag and phosphorus def how do you correct these
Leaves. Color · Black or grey
6y ago
1
3
Solved
aRecreationalist
Seeing some top bud leaf discoloration
Starting to see small dark/black discolorations on the leaves. Since I don't know the genetics, I can't tell if it's prone to dark leaves. Could it be signs of anything else? Note: Started watering only using TopMax and ActiVera because of some possible Nitrogen toxicity
Week 6
Leaves. Color · Dark-purple
Leaves. Color · Black or grey
6y ago
1
1
Solved
PolishFarmer
Coco grow problem
Hi Guys! I have issue in my grow. Girls are in 9th week from seed, 2nd week flowering. Coco substrat pH 5.8 EC 1.0-1.1 temp 23/24 humi 50%. Water EC 0.1 + calmag up to 0.2-0.3, Coco a/b up to above value 1.1-1.2/ph5,8. I believe that are deficiencies by too low ph for bloom stage
Leaves. Color · Black or grey
5y ago
1
2
Solved
tiasmaaa
Phosphorus deficiency ?
I'm not sure but I think it's a Phosphorus deficiency, right ? And if it is, how can I fix that ? just adding more alga bloom ?
Week 10
Leaves. Color · Pale
Leaves. Color · Dark-purple
Leaves. Color · Black or grey
4y ago
4
3