The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Stressed plant
MikeVA
started grow question 3y ago
Having a deficiency or toxicity... Anyone know off hand what this is?
Solved
Leaves. Color - Dark-brown
likes
GMSgrows
answered grow question 3y ago
Salts building in your planter, causes lockout. Ph out of whack also causes lockout. Check both.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Paul71
Help <3
Hello, im growin 2 NL auto, Day 32 VEG, only fed 50 gr of Easy Boost by RQS mixed in soil, nothing more. Soil is BioBizz LightMix. Temp≈ 29C on , 25 off. Average RH≈68%. I dont know which deficiency i have, also newer growth's leaves tips seems like burned idk. Thank you guys <3
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
4y ago
4
Solved
Lancelot420
Help me please
Herkese merhaba ! Şu an çiçeklenmenin 2.haftasındayım ve 1 aydır bu sorunla uğraşıyorum sorunun kaynağını bulamadım ne yapmalıyım? Yardımınız için teşekkürler :)
Leaves. Edges burnt
Leaves. Color - Dark-brown
Feeding. Deficiences
3y ago
3
6
Solved
BioBuds
Brown / rusty spots?
Hi Guys, Any suggestions? Situation: - Bud was close to light - Heat was higher - This is only place on plant - Was the highest bud at the time - Just had watered, maybe overwatered? - Just had put in wood-ash, maybe too alkaline? - Overall bud growth was stunted couple days
Week 9
Leaves. Color - Dark-brown
4y ago
2
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
5y ago
4
4
Solved
MarkWatney
Droopy leaves?
Is my plant okay, i feel like it could be overwatering but i’m not sure, leaves are droopy, and first leaves it has starting to get little dark spots, not sure what’s happening
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
1
Solved
Ionic20
Advice please :)
This is 24 hours later. Should I just give some calmag now even tho the soil is still damp?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
3
Solved
Chief_Leaf
Why are the leaves tips curling dying and brown marks appearing?
My Mac #1 showing brown spots/marks on leaves, with tips curling and dying yellow/brown - what is the problem? How do I fix this? She is in week 5 flower. Is it calcium deficiency? pH problem?
Leaves. Tips - Burnt
Leaves. Tips - Die
Leaves. Color - Dark-brown
1y ago
2
1
Solved
ekipekip
Taches sur les feuilles
Petit probleme avec mes plants des taches marrons apparaisse et j'ai l'impression qu'ils ne poussent plus beaucoup des idées?
Week 4
Leaves. Color - Dark-brown
5y ago
4
4
Solved
HomeGrown_Medicinal
Brown, curling leaves?
I have no idea what's happening here but the girls are showing some kind of deficiency. Browning, curling leaves. I have two 100w led lights above them and I use an organic dry fertilizer, I recently brewed a compost tea to try to get nutrients to them
Leaves. Curl down
Leaves. Color - Dark-brown
3y ago
6
6
Solved
Titocat
calcium deficiency
one plant is showing signs. pic included. had a few nute feeds, recipe as follows (per 2 litre) 1ml bio-grow, top-max & bio-heaven 2ml bio-bloom 24/7 lights; biobizz allmix i treated with bug clear on leaves and added sticky yellow tape q: what dose of CalMag with above ?? ^
Leaves. Color - Dark-brown
Other. General questions
2y ago
4
3
Solved
Eddjack
Deficiency?
I need help recognizing a deficiency. i think it is cal mag, but it seems strange it has quite heavy nutrition. the pH of the earth is 6.20. i'm at 7 weeks and it also seems a bit slow in flowering. what can i do?
Week 11
Leaves. Color - Dark-brown
Leaves. Color - Mottling
5y ago
4
4
Solved
Mephistacheles
Black spots spreading // Need your help!
Anyone got a clue what this dark spots could be? It started in a corner of the tent with 1 plant a few weeks ago and now it has spread to another. I suspect pH issues and a nutrient lockout bc of that. Not sure if its the same issue though..Could be an infection as well...
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
2y ago
1
4
Solved
Dbrito3063
What is this anyone
Leaves. Color - Dark-brown
5y ago
1
1
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
ScoobySnacks77
Is my light too far away from my seedling? What should I do to correct the bend and brown spots coming in on the plant? How often should I be watering my seedling and how much? You can see these deficiencies in my uploaded photos in my profile.
Week 1
Leaves. Color - Dark-brown
Plant. Stem - Weak
6y ago
4
4
Solved
JABS420
Burnt and drying leaves
Any idea what I might have done wrong on the sick mothman maybe nutrient lock or overwatered? It was the only plant without drainage hole and stayed pretty soaked as I was out of town for 3 days. Any advice is appreciated!
Week 2
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Dark-brown
3y ago
3
3
Solved
Dandamans
I believe I light burned my plants when I put in my second 300W LED. Plant's yellowing on tops and drooping and canoeing. Have just switched to 12/12 light 4 days ago. And started to feed Flowering mix of 9ml pure blend pro and 1.5ml cal-mag per 4L. Feed every water.
Week 10
Leaves. Color - Dark-brown
7y ago
2
1
Solved
MonkeyDonkey
Leaves turn brown all of a sudden
What could these brown parts mean? They show up randomly, also on lower leaves, so couldn’t be the light being too close? Thanks!
Leaves. Color - Dark-brown
5y ago
1
3
Solved
haftanara
I know there might be millions things causing these but maby this is some common problem with hydro? Do things like this usually come along with root problems or have i messed up some other obvious thing? Other details in weekly/pics
Week 4
Leaves. Color - Dark-brown
7y ago
1
2
Solved
BosHerbs
brown/bronze marks
Quick question, i notice some brown/bronze spots on all 3 plants. Is that a cal mag issue?
Week 3
Leaves. Color - Dark-brown
4y ago
2
3