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
stained leaf
evoly
started grow question 6y ago
what does it means this stained leaf? what is the problem?
Solved
Leaves. Color - Mottling
likes
Fruitgrower
answered grow question 6y ago
Can be lack of calcium. Your growing in soil? Add some molasses to your water this will feed the soil microbes and add things like iron, cal, mag etc.too.🌱👍
likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
SevenStoned
Why is she splotchy?
What's wrong with my girl? Her leaves are splotchy. Is this light burn?
Week 4
Leaves. Color - Mottling
5y ago
4
3
Solved
bobo66
Interesting white spots on the leaves?The lamp is at the correct distance. SKUNK1 Fem
What caused this? one plant is affected in each of my growing tents.I have a blue insect trap inside that didn’t catch a thrips insect, though it always gets stuck when I’m infected.this is the problem at the top of the plant,but there are also some lower leaves that Genetics?WTF
Leaves. Color - Pale
Leaves. Color - Mottling
Plant. Twisted
4y ago
2
3
Solved
Blucha
Silver stains on leaves
Only curious about leave stains and its color. Can anyone recognise what deficiency that is?
Leaves. Color - Mottling
6y ago
2
Solved
BranchRanch
Can anyone help me identify the cause of the rust-colored spots on a couple of these lower leaves? I am guessing some kind of nutrient burn.
Week 3
Leaves. Color - Mottling
6y ago
6
6
Solved
BigBadLion
I'd like to know what happened to my plant but I'm unsure how to properly describe it. The photos in my diary should be able to make it more clean (W18). Maybe it was botrytis but I caught it on time? Or maybe something else? The trichomes got dark orange where all this happened!
Week 18
Leaves. Color - Mottling
7y ago
3
5
Solved
Catova
Phosphorus Issue?
Slurricane is having a phosphorus issue and not drinking water as fast after transplanting. I’ve been feeding cal mag every water and thinking it’s a root zone issue. Should I apply stop watering and apply a follar feed of 3 part general hydro nutrients?
Week 6
Leaves. Color - Mottling
2y ago
3
3
Solved
Gewroo
Plant issues... How long to harvest?
Could someone please look at my (only) diary and give me an estimate on when harvest might be? I have microscope pictures up . I think I see cloudy trichomes with the possibility of a few amber. Maybe ready now? Not sure but hope to harvest before plant gets much worse. Thanks!
Leaves. Color - Yellow
Leaves. Color - Mottling
Plant. Other
6y ago
2
5
Solved
the_canna_scientist
Fast-growers starting to show issues.
Got some issues on these fast growers. I've been treating it as a cal-mag deficiency, however I've been feeding calmag for two weeks and its only getting worse it seems. Any thoughts? PH is 6.0-6.3, PPM 444 feed, RH 47-50%, Temp 77-81f.
Week 5
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
3
2
Solved
indoorontario
Weird spots
Can anyone identify the spots on the leaves? Not sure I've ever seen spots like these.
Week 3
Leaves. Color - Mottling
5y ago
1
1
Solved
Herroqitti
Yellowing leaves, some spotting
Please help
Week 8
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
1
1
Solved
New_Grower69
Brown spots!?
Hellooo everyone, I am new to growing and I have come across a few brown spots on one of my plants! She's a bit smaller than the other so I didn't train her.. let me know what you think! Also feel free to follow my grow to help me out along the way 😎😎
Week 4
Leaves. Color - Dark-brown
Leaves. Color - Mottling
6y ago
1
2
Solved
Toastdtoast
Still K deficiency?
I fed some flower fuel to plant 1, half strength, and the discoloration got worse! Some leaves almost look like cal deficiency so I also sprayed foliar with calmag, just now when I got home. Is this still looking like a K deficiency? If so, should I feed it again or wait?
Week 9
Leaves. Color - Mottling
5y ago
4
3
Solved
pinkdragon
Just to confirm, this looks like nute burn, doesn't it?
Burnt edges, tips curled up, canoeing. I've been having trouble balancing airflow and heat in such a small tent, and as a result the tent is on average about 28 degrees celcius daytime and the plants still get a lot of wind. Looking for whatever advice you can give! :)
Week 8
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Mottling
6y ago
3
3
Solved
DrDank22
What might be going on with her? In Ocean Forest soil just water so far no nutes.
Week 4
Leaves. Color - Mottling
8y ago
2
6
Solved
Maraviglosos
Bruising or nute problem?
I do not have enough characters here, please check diary for details. Some tops are showing some problems. The thing is, only a few and it does not seem related to light distance. My first thoughts is this is bruising, but I would like some more expert opinions.
Week 11
Leaves. Color - Red or pink
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
3
Solved
Cheeba_Inu
There is some damage on the first set of leaves, I was thinking it's either due to fungus gnats which I am in the process of eliminating, or an early cal-mag issue from before I increased my nutes. Any thoughts?
Week 2
Leaves. Color - Mottling
7y ago
3
2
Solved
BudTowers
Brown spots on lower leaves
Long and short of it is that I'm wondering what's going on with these brown spots on Tiamat. The solution pH has been dropping rapidly, even though the PPM has only very slightly raised (250 - 275 over the past 3 days, whereas pH has shot down from 6.2 to 5.8).
Week 2
Leaves. Color - Mottling
Other. General questions
6y ago
1
3
Solved
SirJester
Nutes too early?
The leaves of my northern lights look a little brittle and discoloured, maybe the small amount of nutes I gave were too early?
Leaves. Color - Mottling
5y ago
2
2
Solved
Untiedmymind
Starting to see yellow gold spots
Top cola starting to show gold spots and pistils turning brown little quickly
Week 13
Leaves. Color - Mottling
5y ago
1
1
Solved
Growpotkin
Purple spots on leaves?
A few leaves have started showing purple spots, some with pale green/whitish bits as well. Picture above. Any help would be great. I’ve been feeding on the BioBizz schedule every second watering, usually every other/every third day.
Week 9
Leaves. Color - Mottling
6y ago
6
3