The Grow Awards 2026 🏆

Back to Grow Questions

Browning in the center

88kasanovastarted grow question 6y ago

Getting some browning on the middle part of the leaves.. can anyone identify this??

88kasanova

Solved

Leaves. Color - Dark-brown

likes

Mr_Weeds_Autosanswered grow question 6y ago

Hey growmie, It looks like you have the start of either a Potassium Deficiency or a Magnesium Deficiency. Those are the only two things that could create those brown spots in the middle of the leaves. Hopefully, this was helpful and remember ..."Happy Growing" and "Free your mind one puff at a time".

2 likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

Brown spot What can cause this? Too much light?

Leaves. Color - Dark-brown

5y ago

3

Solved

What is this anyone

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Browning lower leaves The lower leaves on the Purple Punch in front are turning brown, what could this be? I am using Easy Boost pellets by RQS as nutes, water is ph'd to 6.5 in BioBizz Light Mix.

Leaves. Color - Dark-brown

5y ago

2

2

Solved

Hello can some one explain what's going on I just can't find the problem becous I have 2 plants I feed them exactly the same but one have a problem

Leaves. Color - Pale

Leaves. Color - Dark-brown

Roots. Color - Brown

3y ago

6

7

Solved

Dark green leaves in meringue Is my girl telling me that the flowering fertilizer is too nitrogen loaded? I´m using top bloom from top crop, feeding at 1.4-1.6 Ec, and since last week I started to follow the feed-water-water schedule. The NPK of this fertilizer is 4-8-8. Should I adjust the input EC?

Leaves. Color - Dark-brown

Feeding. Schedule

6y ago

2

2

Solved

lovely_neighbours

Brown black spot crispy edges I need help! Northern Light has Reddish brown spots turning dark-gray and crispy dark edges on the top leaves! It looks like a different issue from week 6 where gray spots appeared on the bottom leaves? Any ideas? Thanks

Leaves. Edges burnt

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

4y ago

2

2

Solved

Leaf spotting Is this a light burn issue or nutrient deficiency?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

2y ago

2

2

Solved

Leaf damage/discolouration The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?

Leaves. Curl up

Leaves. Color - Dark-brown

Leaves. Color - Mottling

4y ago

2

2

Solved

Salve ho allegato qui alcune foto di un paio di foglie potrebbe essere problema di umidità?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

3

3

Solved

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

Tips turning color I've noticed leaf tips are turning slightly brown. Do you think it's a problem? Which could be the reason? Expect this, do you think they are healthy?

Leaves. Color - Dark-brown

6y ago

3

2

Solved

What is this symptom?Have a symptom of something that I could not understand. Started with yellow color from the edge of leaves, suddenly become a brown color and top of the leaves dried too fast like burned. Flushed them but it does not resolve.seems like magnesium def. but i am not sure, any ideas?

Leaves. Tips - Die

Leaves. Color - Dark-brown

5y ago

5

4

Solved

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

Leaves. Color - Dark-brown

7y ago

1

2

Solved

Spots on leaves and yellowing. Lower leaves. Dos si do Have some spots on dos si do leaves as well as yellowing. Thinking it's a deficiency. Possibly calcium. It happened right after a growth spurt. It's a coco grow. What kind of deficiency ?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

6y ago

3

2

Solved

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

Cut strange sugar leaves?I overwatered my plant for two weeks and not there are a lot of sugar leaves wich show like green brownish colors (not the usual just brown) and I'm asking myself if In should cut them off because of budrot or leave them to avoid stress. I'm like two weeks before harvest

Leaves. Color - Dark-brown

2mo ago

1

2

Solved

TheProfessorGrows

K deficiency? Or something else?Not sure how to go about this deficiency. PH is solid at 6.5 so it’s not a ph issue. It seemed I had corrected the deficiency when it first appeared a few weeks ago, but now the brown spots seem to be spreading again. I think it might be K but not sure? Any ideas?

Leaves. Color - Dark-brown

3y ago

1

3

Solved

Brown stains on leaves edges The top leaves on my GG#4 started to get brown on the edges. Initially I thought it was light burn, but the stains kept progressing after I readjusted the light distance. Is it a nut burn?

Leaves. Color - Dark-brown

6y ago

1

1

Solved

Does this look good haha 😊 There is a Little Brown spots on Done of the leaves not much

Leaves. Color - Dark-brown

8y ago

1

1

Solved

Brown dots Leaves I really dont know whats going on... Something is wrong. It looks like leaves are burned by over feeding, not on the tips but brown dots from middle, i only used mycorhiza. Does anyone know what happend? Or any advice how i can fix it?

Leaves. Color - Dark-brown

6y ago

6

3