The Grow Awards 2026 🏆

Back to Grow Questions

yellow leaves with brown spots

AbbznMaccastarted grow question 6y ago

Anybody have any idea what this could be googled it but come up with so many diffrent things

AbbznMacca

Open

Leaves. Color - Yellow

likes

Answer

RastaMouseanswered grow question 6y ago

looks like zinc lock out. is your ph within tolarance for the medium you growing in? ie hydroponics 5.8 soil 6.2 ect. normaly ph being to acidic can make the roots lock out zinc. take a look at your ph bro.

likes

Complain

Similar Grow Questions

Solved

SupportiveMango

What do these yellow markings on the leave tips mean?What do these yellow tips on the leaves mean? Are my lights to close? Looks like light burn to me and have adjusted the lights up 10cm for now. Still wanted to make sure since I thought they need more lights during flower. Thanks heaps

Leaves. Tips - Burnt

Leaves. Color - Yellow

4y ago

2

2

Solved

Over the last week, I have noticed quite a lot of yellowing of leaves, along with them drying out and getting brittle. Now that I am checking the PH of the nutrients, and adjusting to 6.0, I have no idea what's going on. Any insight as to what the issue may be, is appreciated.

Leaves. Color - Yellow

6y ago

3

2

Solved

New leaves are yelow Hello can anyone tell me what is wrong ? it's a 3 week start and apart from the yellow new leaves it seems to be growing slowly. thank you

Leaves. Color - Yellow

1y ago

6

Solved

Calmag Deficiency? Yellow Spots Last res change I saw some yellow/brown spots on the fan leaves up where the main cola was getting too close to the light. Is this a calmag deficiency or light too close? I moved the light up to the top of my tent with zip ties and got back several needed inches. See pics.

Leaves. Color - Yellow

5y ago

2

3

Solved

Yellowing leaves after first Mainline top. Light stress?Just checking in here, I am pretty sure this is light stress. it was at 18" (specs say 18-24" during veg) and she was likely pretty stressed after having her top cut off!!! I have raised light to 23". Am I on the right track here?

Leaves. Color - Yellow

Setup. Lighting

Techniques. Main-lining

4y ago

1

3

Solved

Yellowing of the leaves...One of my King Gelato is suffering, a couple of others are showing the same signs, any one know what this could be?

Leaves. Edges burnt

Leaves. Color - Yellow

6y ago

4

4

Solved

Leafs with yellowish edges Does anyone know what these yellowish marks on the leaf edges on duck #1 are ? At day 14 it´s very present. Also the leafs are a bit out of form in comparison with her sisters. I only gave tap water and BioTabs, night temperatures between 8-10 C, day temperatures 18-23 C

Leaves. Color - Yellow

5y ago

1

1

Solved

PH problems?Hey growers! These purple haze is in their 2nd week of flower. Only one of the two phenos are showing these symptoms. What might have caused this?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

4y ago

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

5y ago

3

2

Solved

Blätter färben sich gelb Hallo zusammen mein Northern Light Baby zeigt Gelblicht Verfärbungen von der Blattmitte ausgehend Seeds kommt von Royal Queen seed und ist ein autoflower 11L Topf wird verwendet Beleuchtung 16/8 1000W Led Erde ist der GrowMix von Plagron Keimung war am 8.9.2021 PH bei 6,5

Leaves. Color - Yellow

4y ago

2

Solved

Is this a Deficiency?Could anyone. Please tell me whats going on here is it a potassium deficiency or is the light too strong

Leaves. Curl up

Leaves. Color - Yellow

5y ago

1

Solved

Mid Flower, Yellow, burnt leaves What could be happening to this plant? Could it be root rot or overwatering ? its in middle flower, with good ph and organic nutrients from top crop, 26°C and 200W led cob. This are the older leafs, but the rest of the plant seems fine. this week I increased the PK levels.

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

2

5

Solved

Leaves looking burnt.I have a few plants that I thought I burnt. Flushed and watered only for a couple feedings. Now they look like this see pics. Ph is 5.8. It's blackberry kush and peyote zkittlee. I'm feeding half strength ghe

Leaves. Color - Yellow

5y ago

1

3

Solved

pH seems to high Hope everyone is having a wonderful day. I having some issues with my pH. I’m growing on a soil mix consist of 50% Coco coir from AC infinity so I know this is Nerf. 40% potting mix 0.13-0.04.-0.13 Black Gold, 5% perlite, and 5% worm castings. What causing the brown/burn tips?

Leaves. Tips - Burnt

Leaves. Color - Yellow

4mo ago

2

4

Solved

Leaf problems I think I did use too much fertilizers, whats happening here? https://growdiaries.com/diaries/180523-grow-journal-by-fiatchd

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Feeding. Deficiences

2y ago

2

5

Solved

Leaves, rust dots, yellowing margins These leaves look like torture, are they getting too much or not enough? Brown rust dots, yellowing margins that turn brown; petioles are purple.

Leaves. Color - Yellow

3y ago

7

5

Solved

Are my leafs looking abit weird Leafs

Leaves. Color - Yellow

6y ago

2

2

Solved

LIVE SOIL. too much nutes or not enough?I think its toooo much nutrients from the live soil, and cold/dry conditions for too long. but someone else said it's lacking nutes? (I was sick, and they were a bit neglected for a bit.. ) using live soil, like I said more info in my diary thanks so much for any input 😊

Leaves. Tips - Burnt

Leaves. Color - Yellow

Feeding. Deficiences

4y ago

5

4

Solved

what cause it，Is it normal?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

5y ago

2

5

Solved

My plants are 3 years old (counting from soaking the seeds) and they are growing really fast but the leaves are a little bit yellowish in the middle. Is this some kind of deficiency or maybe something else? I’m a newbie to this and need your help guys ;)

Leaves. Color - Yellow

6y ago

2

2