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Back to Grow Questions
Grey leaves
herbalistssword
started grow question 6y ago
Noticed some leaves getting a brown grey colour. Any idea what this is? Seems to only affect leaves on one branch
Solved
Week 19
Leaves. Color · Black or grey
likes
MangoDudu
answered grow question 6y ago
I think calcium deficiency next to the clorosis the leaf will start necrosis if is calcium def ✌️🏽
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Complain
Selected By The Grower
Similar Grow Questions
Solved
Grnhead
In the 3rd photo in week 12 there is spotting on the leaves. Does anyone have an idea of what that is from? A deficiency? I had trouble getting the nutrients right and that showed up first after I flushed for a few days.
Week 12
Leaves. Color · Black or grey
7y ago
1
2
Solved
The_Wanderer
Help! Black Weed!
Help! Almost ready to harvest on the winter solstice. Black weed
Leaves. Color · Black or grey
10mo ago
9
8
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
Solved
TupacFR
Old leaves , black spot
Hello , today i cutted some leaves lowest who were yellow , on the plants. these leaves do not have much light. but i found some black spots and i don't know if it's lack of sun and simply died ? Can i just cut them ? What do you think about that ?
… Show more
Week 9
Leaves. Color · Black or grey
6y ago
1
2
Solved
JoeyJoeGrowJoe
Leaves brown and crispy
Leaves brown and crispy Day HR % 55 Night HR % 65 watering them everyday, could that be the problem ???
Week 5
Leaves. Color · Black or grey
6y ago
3
Solved
The_Wanderer
Tea time for health benefits?
What are the health benefits of fresh black cannabis leaves eaten, or made into a cold brew / infusion tea that is different than green leaves?
Leaves. Color · Black or grey
10mo ago
7
5
Solved
Kaiserschmarn
My seedling doesn't look so good.
This is my first coco grow so could be possible that I made a mistake. The other three seedlings are super healthy but this one has this weird thing with it's leaves. Somebody seen this before? I gave them some root juice and fertilizer before transplanting with ph between 5,5-6.
Leaves. Color · Black or grey
6y ago
2
3
Solved
PurpGod
Nitrogen toxicity? Kind soil
How to treat nitrogen toxicity in roots organic soil with kind living soil in bottom 1/3 . only watered 6.0 purified water.. week 3-4 flower
Leaves. Curl down
Leaves. Color · Black or grey
Other. General questions
6y ago
2
3
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
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
einamio
I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage
At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?
Week 5
Leaves. Tips · Die
Leaves. Color · Black or grey
Feeding. Deficiencies
2y ago
5
5
Solved
BeardedTree
I posted some photos of my soil white cookies in week 14 of this diary. The sugar leaves are white almost looks bleached. Its stacked with trichs but is white and I dont know if that's good or bad. Nothing dieing and theyve been white for 3 weeks. No sign of mold, stress, nothing
Week 15
Leaves. Color · Black or grey
8y ago
3
2
Solved
Blabina
My dwarves are sick, issue with leaves
Issues with my dwarves leaves, can you help me to identify them ?
Week 9
Leaves. Color · Black or grey
5y ago
4
10
Solved
ButtersStotch
Leaf Deficiency
What deficiency do you think this is?
Week 10
Leaves. Color · Black or grey
6y ago
4
4
Solved
ZhugeTsuki
Still cant figure out what's going on with this plant. EC was over 2 for a couple of days but has since been taken care of, last reading was .83.
Is this a deficiency or some other kind of issue? Some have suggested a p or k deficiency, but I feed Jack's 20-10-20 peat-lite so I would be very surprised if it was a P problem, and the problem seems to be all over the leaves, but a lot of them start from the base of the leaf.
Leaves. Color · Black or grey
Other. Mold
6y ago
3
Solved
Unkraut
What Deficiency?
What deficiency does this plant have? I have 15 plants inside this tent, all get the same nutes, all look great but only this one has these grey marks on the lower leaves
Leaves. Color · Black or grey
6y ago
1
3
Solved
Kushpooh
LEAFS DYING
The edges of the leaves are dry and black. Every single point of the leaf is burnt(black) or yellow...even some edges on the leafs of the coal are burnt. I guess it’s overfert...but I just flushed. Is it Ph? I haven’t checked in awhile. Is it they ready to be cut down?
Week 9
Leaves. Color · Black or grey
7y ago
1
2
Solved
mushimushi
Deficit or excess? Or what
What happen
Leaves. Color · Black or grey
4y ago
1
5
Solved
baddawgLLL
a black spot
Suddenly, a very small black spot appeared on the leaves of the plant, very, very small. help!
Leaves. Color · Black or grey
5y ago
3
3
Solved
Mcnuffy
Leaf colour black
Week 5
Leaves. Color · Black or grey
3y ago
8
4