The Grow Awards 2026 🏆 
What is this on the leaves
OutdoorUKstarted grow question 4y ago
What is this on the leaves growing in coco and feeding at 1 ec with a little run off
Open
Leaves. Color - Dark-brown
likes
Answer
Robertsanswered grow question 4y ago
Hard to say without a picture. Coco requires cal mag as a additive. Best guess without seeing it. Or your ph is not right in coco. Coco requires heavy irrigation regularly and ph monitoring constantly if going in and out water.
likes
Complain
Similar Grow Questions
Solved
EmeraldGrows
Leaf issues with 3 Pineapple Express Autos - is it burn or deficiency?All 3 plants are having issues to the lower leaves. They are dried and brown blotches, brown edges of the leaves, leaves drooping off and curling down and brown. They switched to Canna Terra Flora two weeks ago - is this a over feed or deficiency?Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Smokeyboar
leafs problemIs this a cal and mag problem or nutrition problem over feedLeaves. Color - Dark-brown
5y ago
3
Solved
MfPacMan
What’s up with my leaves!(aeroponics)Not sure what’s going on hereLeaves. Color - Dark-brown
Leaves. Other
4y ago
2
Solved
FrostyCloudzz
Hilfe was ist los ....Leaves. Curl down
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
2
2
Solved
Farmer99
urgencyHelp me PLS
What can it be ??
Am I still in time ???
I'm at the seventh weekLeaves. Color - Dark-brown
4y ago
5
8
Solved
Don1daz
Any ideas?Anyone got any ideas what's going on here?Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
5
Solved
torgul2000
Banana Blaze brown spotsSoil was missing for my Banana Blaze, I used some general soil.... but I now have some brown spots on the leaves.
Any idea of what is occuring ? I changed form 1L pot to 3.5L pot and stuffed the pot with half general soil...not a good idea I know :-/Week 6
Leaves. Color - Dark-brown
4y ago
4
3
Solved
Wscook07
Yellow/Brown leavesI've got some brown/ yellowing leaves scattered around the plant. Growing in hydro, about 3 1/2 weeks old. Thanks in advance for any help.Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
3
4
Solved
JohnyV
Hello friends, do you know what kind of issue could be these brown spots. It appeared one day ago. I grow in coco perlit with canna feed according feeding chart. Thank you for your advices..Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
5
Solved
HoddZ
Overfed P and KUnfortunately i have overfed PK as thought the bottle said 7ml per L but instead was 0.7ml. Noticed tips of leaves the next day browning so checked the feed chart again and pretty much shit myself. Flushed all 3 plants for about 5 mins and now they seem ok hopefully.Week 8
Leaves. Color - Dark-brown
2y ago
4
4
Solved
Growsa
This is my first grow any help would be appreciate.Week 6
Leaves. Color - Dark-brown
6y ago
2
Solved
Samurai0627
Are you deficient in calcium?Black spots appeared on the leaves. What is the cause?
Flowering 6 weeksLeaves. Color - Dark-brown
3y ago
1
Solved
candyandy
Possible P Deficiency?Hey everyone, hope all is well. I noticed these past few days some dark spots appearing on some of my higher leaves. From what I’ve read it looks like it could be a Phosphorus deficiency. Any ideas? It’s on two out of three plants of the same strain. All same feeding schedule.Leaves. Color - Dark-brown
2y ago
1
2
Solved
420SNoWfLaKe420
What’s wrong with her???What is this some deficiency or something this plant has seemed sickly her whole Life and her same strain sister looks lovelyLeaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
4
7
