Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Spots on leaves
HappySkunk
started grow question 6y ago
Could this be the beginning of a Phosphorus deficiency? Or something else? It’s not really found on my oldest branches, but more my newer ones.
Solved
Leaves. Other
likes
Fruitgrower
answered grow question 6y ago
I would say that's a slight calcium defeciency, just add some cal mag to the feed.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Smokeyboar
De leafing
have I done this right
Leaves. Other
6y ago
1
2
Solved
Papikoko
Her leafs died, why?
Did her leafs died for the sun or is nutrients burn?
Week 2
Leaves. Other
3y ago
2
1
Solved
mrmayconcr
Random spots and marks at random leaves, should i worry about it or is it normal? 100% organic grow.
Should i worry about these marks and spots in my plant? I cant see any bugs or plagues eating my plant, i only had some mold before but used oxigenated water to deal with it and that is it. Now im worried about these random spots, already did some google searchs and nothing yet.
Week 5
Leaves. Other
5y ago
1
2
Solved
FlynnRyder
I'm a slow learner...
Hey yall, having issues with red stems, ph fluctuations, leaf discoloring, and leaks but thats my problem haha. I just had a terrible week and I wanted to make sure a nute change was my only real problem in wk 4. I only wanted to veg 4 weeks but thats not possible or I botched
Leaves. Other
Other. Other
Plant. Stem - Red or purple
6y ago
4
4
Solved
ThePotFactory
Does anyone know what can be causing theese marks and stains on my leaves? View week 6 for pics.. its on the top leaves mostly. Water 5l per plant every other day. Ph at 5.7-5.9
Week 6
Leaves. Other
8y ago
2
2
Solved
ihavetoomanypets
Leaf damage - any suggestions?
Weather has been rough (see my notes from this week). Any suggestions on what I can do about the leaf damage to one of these Sour Diesels? I may start testing a spray mixture of water and hydrogen peroxide. Thoughts or suggestions?
Week 2
Leaves. Other
5y ago
2
2
Solved
thymewanderer
Intruder? or my seed grew legs? Help me!
I remembered I put her at the middle of the pot 24 hours ago but today I found these leaves away from my planting spot 2-3 inches, I wonder what is she?
Leaves. Other
Other. Other
Plant. Other
5y ago
2
Solved
shishyw
Leaves are mutants
Leaves are mutants. Crooked leaves. Why are they so chewed
Week 3
Leaves. Other
5y ago
1
4
Solved
SirDillton
Seedling leaves twisting/ curling
Leaf curling/twisting on first few sets of fan leaves on seedlings? What Causes it? Temp is 28-30c RH65%, watering 500 ml every 3-4 days, Ph6 water and has no nutrients. Par value on lights roughly 400.
Week 1
Leaves. Other
6y ago
12
6
Solved
Vrains
Why the leaves seems with a long vein to the stem?
Week 2
Leaves. Other
8y ago
3
3
Solved
Shamos48
Need help
Hi people Need some help on my first grow I’m 5 weeks into flowering my babies was doing well in my cellar but could not get the humidity down as it was to high So decided to move tent plants into loft.. checked on them 2 days later leaves has turned gold .. why is this ??
Leaves. Other
6y ago
2
2
Solved
mandragore
Leaf Edge Dry, without color change.
Hi guys! 24h after I changed my reservoir and topped my plant, a very quick problem occurred. The edges of the leaves turned dry and died. New weekly nutrition so I checked PH, 5.75. followed AN feeding chart. What can be the problem?
Week 4
Leaves. Other
6y ago
3
Solved
Zer0xKira
Confirm Nitrogen Toxicity ?
I believe my plant is beginning to develop nitrogen toxicity. The leaves are dark green and shiny. They are also thick and feel tougher than the leaves on my other plant
Leaves. Other
6y ago
1
3
Solved
OnlyTaito
Spotted Leaves
My ladies looked good until recently, it has been very warm the last few days. Then they began to let their leaves hang down (didn't get enough water) and gradually turned yellow, now they are getting spots. This is my first grow and I am not sure what it could be.
Leaves. Other
2y ago
3
2
Solved
Tubington9
Slight brown spots
Started to notice some very early signs of a deficiency, or possibly nutrient burn, any suggestions at to what it could be. Have been noticing some very slightly curled down tips.
Week 9
Leaves. Other
4y ago
1
1
Solved
420USA
Leaf
Just did some defoliation on the plants. Do i have to much nitrogen in the leaves also why is the leaf veins going purps.
Week 5
Leaves. Other
4y ago
4
Solved
BuRnOnE
Fan leaves remove or keep?
First time grower need some opinions. 4th wee veg. Should I remove some of my fan leaves ?
Leaves. Other
5y ago
11
7
Solved
daveHH
Hanging leaves (first couple)
Das erste Blattpaar hängt leicht runter und sieht nicht fit aus. Liegt es an der Entfernung der Lampe? Gegossen habe ich 40ml jeden zweiten Tag nur als die Erde komplett trocken war bis 3cm tief. Luftfeuchtigkeit habe ich bei 65-80%. Bitte um Hilfe.:)
Week 2
Leaves. Other
4y ago
3
4
Solved
Underthestairsgrowbro
Anybody have tips for an overwatered plant?
Week 4
Leaves. Other
7y ago
1
1
Solved
Wakesk8
Hello guys please help because I don’t know which kind of animal is..it’s very fast and it’s jumping as well! I need a name and a very quickly solution in case it’s dangerous because my babies are flowering!
Leaves. Other
Other. Other
5y ago
4