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Back to Grow Questions
Leaves are brown could this be calcium deficiency?
WeedBerry
started grow question 5y ago
Hi growers Can anyone tell me what this means
Solved
Leaves. Color - Dark-brown
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French__flair
answered grow question 5y ago
Too much nutrients, flush with water and half dose next time ;)
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Selected By The Grower
Similar Grow Questions
Solved
blacksman
My dear fellow growers, I've just started growing with no experience and am experiencing some leaf issues. I'd like to ask for your help and sugg
The plants in the photo were planted on August 15th, and they haven't bloomed yet. I have very little knowledge about fertilizing, so I applied fertilizer every time I watered for the first month. I'm growing 9 plants in a 120x120cm tent and using two 240W full-spectrum lights.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
6d ago
3
3
Solved
HomeGrown33
Brown Spots on Leaves
I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!
Leaves. Color - Dark-brown
Leaves. Color - Mottling
1y ago
5
3
Solved
IceeTea31
Help
What is the issue? do they need calmag or should i flush them? if i should flush them what ph should this water have?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
5
5
Solved
Ionic20
Advice please :)
This is 24 hours later. Should I just give some calmag now even tho the soil is still damp?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
3
Solved
CoolGuy123
Why are some leaves forming small brown dots?
What are these leaves doing? It seems to only be these 2/3 and I wonder why they form these brown spots.
Week 4
Leaves. Color - Dark-brown
7mo ago
1
2
Solved
MarkWatney
Droopy leaves?
Is my plant okay, i feel like it could be overwatering but i’m not sure, leaves are droopy, and first leaves it has starting to get little dark spots, not sure what’s happening
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
1
Solved
elevensixty6
Calcium "deficiency" at 8ml/RO gal and still no improvements in weeks.. now my other tent has started the same spots.
Cal excess or Mag problem? My Blueberry and Wedding Cake Autos are now spotting in new and old growth. Even at 8ml/gal CALiMAGic for a couple weeks no improvements. feeding nutes with two days of just calmagic RO water in between with runoff about 0.5 gal daily in FFOF soil
Week 7
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
6
Solved
Wildgrass
Leaves turning yellow with brown patches
I noticed the first real leaves on one of my plants turning yellow in FFOF. I transplanted them into bigger pots with ProMix M in hope that it would stop. Condition seems to continue worsening. I have started to notice the cotyledons on some of the plants turning yellow.
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
2
Solved
bfcuk
I have noticed brown spots on a leafes, what is it ? overdose ?
Leaves. Color - Dark-brown
10mo ago
3
5
Solved
Mysteriogo
Dead ?
Hello guys, My flowers seem dead, trichomes are not changing since 3 weeks. + Leaves are really horrible (that's broke my Heart) Do you think I should harvest ? That's really clear trichomes and not milky... Still thc in there ? Colombian jack strain, smth about week 27 ?
Leaves. Color - Dark-brown
Other. Harvest - Drying
3y ago
5
4
Solved
myketb
Mg Mn P K deficiency?
Mg Mn P and K deficiency? Only happen on mid-lower leaves. How to fix this problem on my mother plant in soil substrate? Top leaves are OK. My watering is pH 6.5 and foliage spray CalMag 1ml/L a few time already and still see this happen on lower leaves. 🙏
Leaves. Color - Dark-brown
3y ago
3
4
Solved
Terra_Farma
Brown Patches on Older Leaves
Slight yellowing and brown mottled patches. Only on one of the two plants and they’ve been treated and fed exactly the same. On some older fan leaves, no signs of anything on new growth. Anything to worry about at this stage? Maybe just a sensitive pheno? Any advice appreciated.
Week 7
Leaves. Color - Dark-brown
5y ago
3
3
Solved
Manis
Leaves problem
Hello guys! I have a problem with one of my plants. Power Flower 🌸 the leaves have started going brown and the color of the plant is not green enough.. I think ether too much water or a mix of Amino+Copper! The autos got the same watering and same Amino+Copper mix! I'll sto
Week 2
Leaves. Color - Dark-brown
3y ago
2
2
Solved
BigBuddy91
Cotyledon issue from seedling
Have seedlings from Auto Colorado Cookies (Dutch Passion). One already has cotyledons, but not opened yet. I see some yellow and bigger brown spot of the tip. In the beginning I had 250 PPFD, could this be the issue? Now I am around 100 PPFD and put the light a bit up. See photo.
Leaves. Color - Dark-brown
3mo ago
2
Solved
zaMaurice
Moin, bei meiner Größen Pflanze fangen die Blätter an von außen gelb zu werden und braune Punkte zu bekommen. Ist das ein Zeichen von einer überdüngerung? Alle anderen Pflanzen haben dies nicht. Oder zu wenig?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
2
2
Solved
free_baby
Big dissease
I think i have nutrient lock out but don’t know how to fix it it, its 3th week of bloom and its an outside plant. Its getting colder 9 degrees C at night and around 20 at day. Its been raining a lot recently maybe that has something to do with it.
Leaves. Edges burnt
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
17d ago
4
4
Solved
Guaxi
Gelato#33 looks sad
Please can someone take a look at my Gelato #33? She has some dark brown spots on the under leaves and the upper leaves look very dry. :/ I did some "fin" cropping and looks like it didnt went well. It mutated a little bit? It is my first time.
Week 8
Leaves. Color - Dark-brown
Techniques. FIMing
4y ago
4
4
Solved
R2d2420
Discoloration in a few leaves
Got a few leaves with a bit of discoloration. Id say a lighter shade of green going on brown. Hope the pic helps. Should I be worried?
Leaves. Color - Dark-brown
4y ago
1
1
Solved
Paradox_1ste1
Ayahuasca leaves are turning brown in an rust color . Most of the plants are healthy but some of them are starting to curl and get this brown color. Can anyone help me what is going on . ( im using 600w lumii lights ) would appriciate it if anyone gives me a hint 💚
Leaves. Edges burnt
Leaves. Color - Dark-brown
3y ago
2
2
Solved
meangreenmachine
Spider mites?
What do you think the problem with leafs are during my week 4? I have noticed the there was discoloration on some levels and somewhat looks like someone might be eating from underneath of the leafs.
Week 4
Leaves. Color - Dark-brown
4y ago
1
2