Vote Now 🏆 for the Grow Awards 2025!
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Noob grower
Misanthropestarted grow question 3 years ago
Gorilla Bomb, outdoor grow, directly in soil, Miracle Gro 20-20-20 once per week. In the past few days, leaves have developed brown to black spots that start at edges and spread inward. I have 1 Green Crack under identical conditions and another GB and GC in outdoor pots
Solved
Leaves. Color - Dark-brown
like
typhoniananswered grow question 3 years ago
You got some yellowing and leaf crawling too. Cut back on that gro, go light on it. Just water them for a week, there in soil so you’ll be fine. I would also start ph balancing your water, go easy on that gro. Good luck.
Misanthropeanswered grow question 3 years ago
I've got 3 other plants under the same conditions that are the picture of health, wouldn't they also show similar leaf damage if it's a nutrient imbalance?
like
Complain
Aqueminianswered grow question 3 years ago
That's a pH balance problem 100%. The soil it's in needs to be adjusted. Start ph balancing your water to 6.2 for every feeding or watering.
like
Complain
Robertsanswered grow question 3 years ago
Nutrition inbalance. Vegging requires a ratio of 3-1-2 npk. Flowering is 1-2-3 ratio. Probably has the soil ph out of alignment too. Would be worth looking into as well
like
Complain
Similar Grow Questions
Solved
TickleToast
What am I looking at?Redish Brown spots, and slight discoloration.
Magnesium deficiency? Calcium? Other?
Gave them a splash of Calmag, but was it even necessary?
OR, should I have just swapped nutes and wait, then correct if not improved? (It was nute day, that's why I ask!)Leaves. Color - Dark-brown
4 years ago
2
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 happeningLeaves. Curl down
Leaves. Color - Dark-brown
4 years ago
2
1
Solved
MarkWatney
Black spots?Is this a deficiency, nutrient burn, or disease, growing in MG soil, recovering from overwatering as well.Leaves. Color - Dark-brown
Leaves. Color - Black or grey
4 years ago
1
1
Solved
Cookie_monster12
What is this caused by? Cant seem to get rid of it. Been taking off worst affected leaves but dont want it to be ruined this close to harvestLeaves. Color - Dark-brown
4 years ago
1
1
Solved
CannaCookie
Plant seems to be slowly dyingMy plant started to go backwards and I can’t get it revived, anyone has any idea what it could be?Leaves. Color - Dark-brown
4 years ago
2
2
Solved
JesusChrist
Saw this first day of 12/12Pretty sure this is just where I got nutrient solution on my plant yesterday when watering unless it's something else? I pulled these leaves off 1 plant when lights came on this morning. Every Plant looks 💯 great besides these 3 leaves, all from 1 plant rest of plant is great.Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
4 years ago
1
1
Solved
BalconyWiTCH
Brown/burned? LeafAnyone could please help me figure out what´s causing this? Brown/burned? Leaf
I feed them water PH (6-7)
BioBizz BioGrow (3ml/L) and recently switched to the combo of BioBloo(1ml/L) m + BioGrow (2ml/L) since they are just starting to flower.Leaves. Edges burnt
Leaves. Color - Dark-brown
Other. General questions
4 years ago
1
1
Solved
StDeacon
Can anyone tell me what that is?Hi folks, can any of you tell me what kind of problem she has?Leaves. Color - Dark-brown
4 years ago
1
Solved
Pugbutt
What do you think is wrong with this?Just wondering if this is nute burn or something else. ... and what is it?
I ph balance my water to 6.3, adding tiger bloom 10ml to 1 gal. Every other day.
Just started big bud and bud candy @2.5ml per gal. Only feed once, yesterday. I left a one day gap between tiger bloomWeek 13
Leaves. Color - Dark-brown
4 years ago
2
Solved
Kripoulas
Deficiencies while in late flowering during flushing periodThere is deficiency going on (looks like cal) she is an auto flowering strain in her 9th week and been flushed for a week now. Should I give her cal/mag and stop the flushing or is it too late to deal with that? She looks like she will be ready to chop in a week or so.Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
Feeding. Deficiences
4 years ago
4
2
Solved
Tomi589
Hojas marronesHola soy nuevo, quería saber cual es el motivo de estas hojas amarillas marrones que tengo . Soy novato es mi tercer cultivo , podría ser quizás sobrefertilizacion , falta de algún nutriente o algún bicho? Envio fotos de las hojas afectadas y la planta en general.Leaves. Color - Dark-brown
4 years ago
1
2
Solved
Eddjack
Deficiency?Non riesco a capire se è una carenza o una bruciatura da luce, secondo voi? Cosa potrebbe essere ? Appare soprattutto sulle foglie a ventaglio....Leaves. Edges burnt
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
4 years ago
2
2
Solved
GoldenWeedGrower
Brown spots on the first 2 leavesI noticed these brown spots on the first leaves and I'm wondering what are about. Any suggestion ?
ThxWeek 1
Leaves. Color - Dark-brown
4 years ago
2
Solved
livetogrowgrowtolive
What kind of deficiency is that? pls helpWeek 5
Leaves. Color - Dark-brown
4 years ago
2
2
Solved
FrostyCloudzz
Hilfe was ist los ....Leaves. Curl down
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4 years ago
2
2
Solved
jbirdstheword
Burn, deficiency or other?I’m completely stumped as to why my one plant is showing signs of deficiency or burn. Used the exact amount of fertilizer per plant. One plant is fine and the other looks terrible. I used a half dose of cal mag and it seems to have stopped but is not drinking or looking better.4 years ago
3
2
Solved
Grishka
Can you identify the issue?Leaves turning yellow and brown and curling at the tipsLeaves. Color - Yellow
Leaves. Color - Dark-brown
4 years ago
2