Cannabis Infirmary

Learning how to grow cannabis can be tricky. Learn how to identify, diagnose, and fix common problems faced while growing marijuana plants.
I
Leaves turning yellow and beige spots. Overwattered?
Replies
8
Views
551
igm.ig
I
Smitty_fetti
Help please lots of yellow leaves and crispy
Replies
5
Views
338
dire wolf
dire wolf
Nooby701
Whats with my leafs pt.2
Replies
3
Views
370
Nooby701
Nooby701
dcb6390
Help with diagnosis?
Replies
11
Views
1K
Ph 007
Ph 007
MRP
Copper
Replies
1
Views
331
LittleDabbie
LittleDabbie
STgrowin
Burnt pistol hairs.
Replies
1
Views
592
LittleDabbie
LittleDabbie
S
First time growing, so confused!
Replies
6
Views
536
Beachwalker
Beachwalker
Randy.Lahey
Weird germination sprout
Replies
0
Views
236
Randy.Lahey
Randy.Lahey
Bobble
Spots
Replies
1
Views
241
LittleDabbie
LittleDabbie
cmsed3
Help when my plant sprouted, one of the cotyledon leaves was missing
Replies
1
Views
2K
Frankster
Frankster
Parrottroop
What the heck happened??
Replies
5
Views
434
oldskol4evr
oldskol4evr
Waxwingz
Should I harvest my sick plant?
Replies
0
Views
313
Waxwingz
Waxwingz
Surfandgrow
Anyone ever seen this?
Replies
18
Views
3K
STgrowin
STgrowin
K
Can nute burn burn pistils or should I look for a hermi?!
Replies
11
Views
15K
STgrowin
STgrowin
M
Silica overdose
Replies
6
Views
1K
chemistry
chemistry
Jason0044
WHATS THIS?
Replies
3
Views
480
LittleDabbie
LittleDabbie
STgrowin
Please help! Burnt pistol hairs on week 5 plant.
Replies
7
Views
1K
STgrowin
STgrowin
Wildnstoned
Small white little thing that crawl
Replies
18
Views
575
LittleDabbie
LittleDabbie
jaimars
Deficiency?
Replies
16
Views
538
MIMedGrower
MIMedGrower
neuromorphic
New growth seems more light green than usual
Replies
11
Views
7K
neuromorphic
neuromorphic
D
My leaves are yellowing
Replies
18
Views
688
Aqua Man
Aqua Man
MARRYJANN
is this plant a Herm?
Replies
2
Views
330
chemistry
chemistry
Parrottroop
Please help a newbie!
Replies
19
Views
1K
Moshmen
Moshmen
Burnwun
Mold? mildew?
Replies
6
Views
357
Madbud
Madbud
bigmikeyg
plants look decent at lights on and half of the cycle and crappy before lights out
Replies
8
Views
643
Aqua Man
Aqua Man
biggerbud420
ph ppm meter
2
Replies
22
Views
2K
Beachwalker
Beachwalker
MisterHelix
Sick, or just a crappy pheno?
Replies
1
Views
325
Jack og
Jack og
R
Single leaves
2
Replies
20
Views
51K
prtcleman
prtcleman
Ryboburton
I need serious help with these clones
2
Replies
21
Views
1K
Ryboburton
Ryboburton
N
Why are my outdoor plants flowering at solstice?!?!
Replies
8
Views
1K
Jack og
Jack og
ezenzyme
Strange small leafs and not growing well
Replies
4
Views
540
bigslimdawg79
bigslimdawg79
B
Heat stressed seedling- pruned most leaves
Replies
1
Views
381
bigslimdawg79
bigslimdawg79
enoughskunk
Is this N toxicity -- Blue Mystic Week 9
Replies
10
Views
717
SPARECHANGE
SPARECHANGE
GreenBeanGrowingMachine
1st time grower, need help diagnosing a problem on my plant
Replies
2
Views
750
GreenBeanGrowingMachine
GreenBeanGrowingMachine
A
Need help with my seedling, it has brown spots on leaves
Replies
1
Views
1K
Jack og
Jack og
MRP
Help lower leaf damage
Replies
2
Views
347
MRP
MRP
LoganatorDude
Drowning Seeds during Germ.
Replies
3
Views
5K
SPARECHANGE
SPARECHANGE
1Islandguy
Creepy crawlers
Replies
6
Views
833
Wristle
Wristle
SamRD
Small white crawlers in my soil
Replies
8
Views
961
SamRD
SamRD
Jahredi
Weird leaf pattern
Replies
5
Views
697
Jahredi
Jahredi
Guerilla 420
Spotted leaves?
Replies
15
Views
724
Beachwalker
Beachwalker
420Artie
Taco leaves, curling outdoors
Replies
16
Views
4K
weedtech
weedtech
Noobiegrow
Flipping to flower
Replies
13
Views
948
Aqua Man
Aqua Man
Burnwun
Leaves tubing???
Replies
1
Views
617
Aqua Man
Aqua Man
G
One of my girls needs help.!
Replies
2
Views
333
Gkush
G
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