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
longearringboy420
started grow question 1y ago
New grow, week 1 or 2. Just transplanted the plant 1 days ago and cut some leaves due to being too dense. Today I woke up to see these marks on the plant. What could it be ?
Open
Leaves. Color - Dark-brown
likes
Answer
John_Kramer
answered grow question 1y ago
looks like a problem with K did u feed her with Ca,Mg ? if not then it's K def
likes
Complain
Similar Grow Questions
Solved
hellomynameis
More leaves turn yellow from the bottom upwards with brown spots in the middle of the leaf. ph 6.2 goes in but runout is 7.4 what is wrong? lockout or overfertilised? I used BioBizz schedule. Will it flower someday or should I trash it? 😭
Week 12
Leaves. Color - Dark-brown
7y ago
16
6
Solved
HAPPYWEEDS
Dark dots in leaves. Lamp burns?
I saw this dark dots in leaves but only she has it. She was exactly under spider-farmer sf1000 at 30 cm. Now I moved to other softer light at 40 cm. What do you think? Lamp burns? They're dry and curl up. Some images are edited for better appreciation but you have also originals.
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
4
3
Solved
GracelessGardens
Browning leaves?
What's up with these fan leaves? I'm starting to notice some light brown hues in a couple, mostly closer to the bottom of the plant. Anything to worry about?
Week 6
Leaves. Color - Dark-brown
4y ago
3
Solved
B2real214
I'm not sure what's wrong with first seed maybe nutrient burn should I throw out and start another seed or can it recover?
Week 1
Leaves. Color - Dark-brown
8y ago
4
6
Solved
420baby
Orange Spot in first set of leaves
If you can see Veg Week 1 Photos, Photo named Day 7 Zoomed, I have been seeing these dots for 2-3 days now. What is it? how can it be solved? FYI - These were the first set of leaves, others look healthy. My guess - nut water got sprinkled or cal/mag deficiency.
Week 1
Leaves. Veins - yellow between
Leaves. Color - Dark-brown
5y ago
2
3
Solved
ElevatedThinking
Why are there soon many brown spots all of a sudden in WK 7?
I'm entering Wk 7 and the same lady is hurting again. She's been feeding heavy for last few weeks and doing great. So, I gave a light water/microbes dose w/can and Epson. Now I think its potassium or something else entirely... Brown spotting, yellow, crispy? Thoughts?
Week 7
Leaves. Edges burnt
Leaves. Color - Dark-brown
6y ago
3
3
Solved
VitaMan
Leaf necrosis
What's going on with mk Ultra? It gets Neem every 2-3 days, and I have tried to keep pH down to 6. This has been going on since I got the clone, and it continues to happen. The pink kush (last pic) has a few similar spots. Lights are 50cm above.
Week 3
Leaves. Color - Dark-brown
3y ago
3
2
Solved
BudahBudz2020
Hey guys can anyone tell me what this is the new growth seems fine a tad bit lighter green but the older leaves some have this please help im leaning toward a cal mag deficiency Using bio bizz light mix Bio grow and a few drops of root shoot Week 4 of veg
Leaves. Color - Dark-brown
Leaves. Other
Other. Bugs
6y ago
4
4
Solved
Maskedcucumber
What to expect when your plants have been sick in veg ? (N excess, chlorosis)
I had a nitrogen toxicity and a chlorosis (overfeeding, bad PH probe) during veg. They are green for a few days (Now day 66 from seed and flowering since day 41). One has messy and 2many leaves, one burned, 2 are small. I was wondering about the consequences on quality and yield?
Week 10
Leaves. Color - Dark-brown
Plant. Twisted
5y ago
3
3
Solved
Asuratyr
Nutrient deficiency? If yes, what's the best course of action to salvage the situation?
First time grower of 3 autos, at week 8, lower leaves started turning yellow, top leaves started to get smaller/develop brown spots 2 weeks ago. Is this a nutrient deficiency problem? Soil should have been fertilized for 3 months, but I'm thinking they burned through it.
Leaves. Color - Pale
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
2
2
Solved
yokotasan
Brown points and yellowing
Yo. I have 4 identical plants. One suddenly started to yellowing (mainly bottom) But top has some coloring of brown. Also, i feel like all 4 girls are slow in flowering. P. S. I have 5l pots. The rest like temp, humidity and ph is normal. I also use filtered water.
Leaves. Color - Dark-brown
3y ago
3
6
Solved
fragmentsoftime
Hi, last weeks my plants started to show symptoms of nitrogen deficiency. last 2 times i watered with 1,5x nutrient. Now they look like that, do you have any advice about the plants? -water 6.5 ph -120x120 tent, 240w QB Nutrients: t.a pro organics grow-bloom, aleo vera spray
Leaves. Color - Dark-brown
Feeding. Deficiences
2y ago
1
Solved
Eotrio
Brown spots on leaves
i got those brown spots on my leaves and cant quite get on why they are there, im sure i watered enough biobizz calmag, so i dont think its that, the second plant looks just fine, meanwhile the plant with the brown spots have a lot more trichomes, really weird
Leaves. Color - Dark-brown
3y ago
1
2
Solved
ThePotFactory
Ive got a few dots showing up on one of my plants. Could this be because of the cold??
Week 2
Leaves. Color - Dark-brown
8y ago
5
6
Solved
Greenlady
What happend? I just started feeding them yesterday with this, but the others are just fine.. Did i burn it? What should i do?
Leaves. Color - Dark-brown
6y ago
4
Solved
Growjardin
Curling leaves and browny patches
Leaves curling down after 3 hours of light on so far, in coco soil, airpots, been watering once a day feeding once a week. Brown patches too, thinking up the feed or over water as was sitting in water in the pot saucers
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
Solved
Troy_McClure
soil ph is erratic fox farm ocean forest : pro-mix (3:1) - ph 6.3-6.8 run-off ph: plant 2: 4-6 plant 1: 5-6.8 watering / feed ph: 6.3-6.45 soil ph after water /feed: 5-7 soil ph when dry: 7.5-8 both plants treated 100% the same phosphorus deficiency / ph imbalance help please
Week 10
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
6y ago
4
3
Solved
88kasanova
Browning in the center
Getting some browning on the middle part of the leaves.. can anyone identify this??
Week 4
Leaves. Color - Dark-brown
6y ago
2
1
Solved
timbarin
Started some deficiency with two plants I think the leaf going up is light stress, and the other yellowimg is n deficiency way too much food but I could use a 2nd pair of eyes on this
Week 4
Leaves. Color - Dark-brown
7y ago
1
Solved
gnlscience
Brown leaves
Hi experts. Whats could be causing the leaves turning brown on one of the smaller ones. Didn't wana share my secret but all I'm feeding them is the laundries gray water
Week 11
Leaves. Color - Dark-brown
6y ago
4
4