The Grow Awards 2026 🏆

Back to Grow Questions

Leaf colour black

Mcnuffystarted grow question 2y ago

Leaf colour black

Mcnuffy

Mcnuffy

Solved

Leaves. Color - Black or grey

likes

AsNoriuanswered grow question 2y ago

genetics, but check your feeding, girl is not happy, i see light clawing, sign of nitrogen toxicity. those funky colours plants needs way less feeding i noticed personally.

2 likes

Complain

Selected By The Grower

Hashyanswered grow question 2y ago

It's fine she is going to pull out some stunning colours.

2 likes

Complain

kashmiranswered grow question 2y ago

You will have a very colorful plant :D

2 likes

Complain

Scrubbyjimbobanswered grow question 2y ago

It's fine, just genetics.

2 likes

Complain

Similar Grow Questions

Solved

Weird coloured leaves The leaves are yellow a bit on the outside and just today noticed that it looks kind of black too. Anyone know if this is because of a certain deficiency?

Leaves. Color - Black or grey

5y ago

5

5

Solved

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 ?

Leaves. Color - Pale

Leaves. Color - Dark-purple

Leaves. Color - Black or grey

3y ago

4

3

Solved

what is this?1 plant has grey interveinal leaf spots and grey wilted edges. never seen this before. its only on top of the plant. my temps dropped to 17°C last night. light intensity is about 500ppfd. im guessing that it is a ph issue or overfeeding the other 2 plants are fine

Leaves. Twisted

Leaves. Color - Black or grey

1mo ago

4

7

Solved

what cause it，Is it normal?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

5y ago

2

5

Solved

Can anyone tell me why my leaves are curling up

Leaves. Color - Black or grey

6y ago

3

Solved

Is this a calmag problem?What problem do i have? Is it calmag? Help please. I grow in lightlix biobizz and with biobizz fertilizer

Leaves. Color - Black or grey

4mo ago

1

1

Solved

Black poison is starting to show her colors.What can i do to speed up or enhance this process.See photos.This is a outdoor grow .

Leaves. Color - Black or grey

5y ago

1

Solved

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

which deficiency?what deficiency does this look like? (specifically the plant with the yellow tips,blackish leaves,and brown spots on lower leaves) ph is around 5.9 but also i know my meter is probably not accurate. i thought i was underfeeding if anything,did have root rot.

Leaves. Color - Black or grey

5y ago

4

3

Solved

Week 2 flower.Buds turning black Buds and leaves under are turning black, any advice? Something to worry about?

Buds. Other

Leaves. Color - Black or grey

3y ago

3

2

Solved

Black Leaf Does anyone know what's this? I just transplanted it, yesterday, and one of the leaves is getting black and smaller.

Leaves. Color - Black or grey

5y ago

3

2

Solved

Black growth seedling One of my 10 day old purple punch seedlings has some black stuff on its new growth in the center. My older PP had it too and she’s big now and doesn’t have it anymore.Still is this anything to be concerned about?

Leaves. Color - Black or grey

6y ago

4

Solved

Light distance and power I have lumatec Zeus pro 600w 2.9 Plan is to have it 50cm away 25% power 1st week veg 50% power rest of veg 75% power for 3 weeks of flower 100% power till the girls are finished In the 1st grow I’ve made mistake in the light management. Am I correct in my thinking this time?

Leaves. Color - Black or grey

4y ago

1

4

Solved

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.

Leaves. Color - Yellow

Leaves. Color - Black or grey

Roots. Too few

5y ago

3

3

Solved

Today I noticed 🍄mushrooms popping up with GiSCele. Does that matter? Are they🍄poisonous to girlies? Don’t bother me,but I dunno🤔. I recently started using 🦇 bat guano and have a feeling that’s what encouraged- kinda cool if I see Smurfette sunbathing on 👙🆒👍🏼

Leaves. Color - Black or grey

7y ago

1

2

Solved

Weed doctors to the rescue Day 44, fb auto, my happy girl developed those dark spots at the top... Is this a Calmag deficiency? Although I'm giving her calmag every feeding. I think there are also first burnt tips. I'm about to water her tonight, what should or should not give her? Thanks for your inputs🙏

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

1y ago

3

5

Solved

Nutrient burn How can I fix a nutrient burn on a seedling?

Leaves. Color - Black or grey

5y ago

1

1

Solved

ist das sclimm Kennt sich wer damit aus und kann mir sagen ob das schlimm ist? das ist mein erster grow und nur diese pflanze hat auf ein paar blättern diese punkte danke schonmal im vorraus

Leaves. Color - Black or grey

2y ago

5

3

Solved

Schwarze Spitzen und Flecken nach Neemöl-/Kaliseifenbehandlung in der Dunkelphase. Schimmel? Dran lassen oder abschneiden? Bitte um Hilfe!03. November: Zu Beginn der Dunkelphase, einen Mix aus 200ml Wasser mit 2ml Neemöl, ein Schuss Rapsöl und 4ml Kaliseife, auf die Pflanze aufgetragen. Grund dafür ist ein Befall mit weißer Fliege. Alles habe ich nicht aufgetragen. Heute sehe ich schwarze Flecken. Ist das Schimmel?

Leaves. Color - Black or grey

Other. Mold

1y ago

4

6

Solved

Mi situación empeora! AYUDA DESCRIPCIÓN MUY COMPLETA EN COMENTARIOS!

Leaves. Color - Black or grey

5y ago

4

6