The Grow Awards 2026 🏆 
What happened to the leaves?
MEDICATstarted grow question 4y ago
What happened to the leaves?
Was it caused by too much water?
(Coco ph5.8)
Solved
Leaves. Color - Black or grey
likes
Robertsanswered grow question 4y ago
Looks like phosphorus deficiency. Too much water can cause this or it is just purely lacking it. Good luck 👍
Robertsanswered grow question 4y ago
In coco you can not have too much water in one sitting. Is your run off ph 5.8?
1 like
Complain
Similar Grow Questions
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
5y ago
2
3
Solved
U2malone
Bud leaves turned blackTop leaves turned brown overnight, That day I did come home to a disturbing temp off 31oC . It’s the black Mini leaves in buds that are worrying me more. lights came on accidentally for two hours so gave her 16hrs dark and back to 12/12
This may have contributed.Week 18
Leaves. Color - Black or grey
5y ago
1
Solved
Nachtjasmin
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?1y ago
1
7
Solved
Romobo16
Black spotsIt's the last clon from that strain that I have (There are no longer seeds for sale) after saving her (She was in terrible conditions) she was growing great this last 5 days until yesterdays that I saw this black spots.
PPM 670-PH 5.78-WaterT 68.7-AirT 71.6-PPFD 120-Humidity80%Leaves. Curl up
Leaves. Color - Black or grey
1y ago
2
Solved
Zuzuman
Mehrere Mängel2. Grow mit Gorilla Cookie Autoflower Samen. Hinten links sehen die Mängel aus wie hinten rechts, denke Phosphor also laut Bildern und vorne ist so ziemlich vieles gemischt aber extrem. Der einzige Bud der richt wenn man ihn anfasst ist der von der hinten rechts die anderen nichtBuds. Not fattening
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
3mo ago
2
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, nothingWeek 15
Leaves. Color - Black or grey
7y ago
3
2
Solved
portcityplug
Flower developmentI'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 70Leaves. Color - Black or grey
5y ago
1
1
Solved
Amboss
Deadly LeavesStart Week 9 … is this a Problem or normal?Leaves. Color - Black or grey
1y ago
1
Solved
Bochica
Hello growers please help on this one, since yesterday the leaves are getting curled, yellow stains and kind of black on the leaves, you better see the images. In the third image you can see how the leave is getting these black/golden color. Any suggestions? TyLeaves. Color - Black or grey
2y ago
2
4
Solved
igrowtomatoes
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.Week 4
Leaves. Color - Black or grey
5y ago
4
3
Solved
Blabina
My dwarves are sick, issue with leavesIssues with my dwarves leaves, can you help me to identify them ?Week 9
Leaves. Color - Black or grey
4y ago
4
10
Solved
kelsiehoward95
First grow issuesAnyone know if this plant is gonna make it or what’s going on? Three different plants, First grow, all seeds are going good but these. Pictures are kinda hard to see. First two pictures are one plant. 3rd picture is 2nd plant. 4th picture is the 3rd plant.Leaves. Color - Black or grey
3y ago
5
Solved
FiFrElOt
Taches noires sur les feuillesDemande de confirmation de diagnostique: J'ai remarqué des taches noires aux extrémités des feuilles. Je pense qu'il s'agit d'une carence en phosphore?
J'ai un peu tardé à nourrir ma plante.
Dans mon dernier arrosage:
Ph 6.5
EC : 1.8
Terra bloom, green sensation, pure zym.
MerciWeek 5
Leaves. Color - Black or grey
4y ago
1
1
Solved
Slickchigdog
Is this a calmag problem?What problem do i have? Is it calmag? Help please. I grow in lightlix biobizz and with biobizz fertilizerLeaves. Color - Black or grey
2mo ago
1
1
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
4y ago
4
3