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Why are Basil leaves yellow and brown?

Hi Everyone,

I purchased two small basils from the Bunnings two weeks ago. However, I noticed that their leaves began to turn a bit yellow and small brown spots started to appear on a couple of leaves. I have checked the soil and it is moist. Does anyone know what these symptoms indicate?

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I would appreciate it if anyone could give me some hints.

Kind regards,

Vincent

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Comments

mich1972

Good afternoon @VincentCCS Your Basil looks like it needs a liquid feed probably. Especially if they are growing in pots. Looks pretty healthy though. I’ll tag @Noelle into the post and see what she thinks 🪴😃

EricL

Hello @VincentCCS

Thanks for sharing your question about your basil.

How often do you water the basil? Did you water it until the soil was soaked or did you just lightly water the surface? Do you have it in a spot where it is in direct sunlight? Is it very hot where it is currently located?

Sometimes you have to put the basil in the shade specially if the plant is getting too much sun and heat. Too much of a good thing can sometimes damage the plant.

If you have any other questions we can help with, please let us know.

Eric

VincentCCS

https://www.workshop.bunnings.com.au/discussion/comment/35390#Comment_35390

Hi @EricL ,

Thanks for your suggestions. I usually water them when I feel the soil is dry by testing them with my finger poking into the soil. Generally speaking, I water them one to two times a week. I soak them and then let them drain when I water them. I put them beside the window on my balcony. So they receive direct sunlight from around 1 pm to 8 pm. According to your suggestions, I guess they are exposed to too much sunlight and I could give them a bit more shade and see if their leave issue will improve.

Vincent

EricL

https://www.workshop.bunnings.com.au/discussion/comment/79977#Comment_79977

Hi @VincentCCS

Thanks for that extra information, yes, I suggest bringing it into the shade for a bit if you feel that it has been getting too much sun and heat.

Eric

Noelle

https://www.workshop.bunnings.com.au/discussion/comment/79977#Comment_79977

Hi @VincentCCS

Direct sun through a window isn't good - the glass can intensify the sun's rays and cause burning of the leaves - I suspect that is what the brown spots are.

Basil loves good, indirect light so move them out of direct sun through the glass but leave them near a window so the light is still quite bright but not likely to burn the leaves.

A liquid fertiliser applied once every two weeks will keep plants happy and healthy.

VincentCCS

https://www.workshop.bunnings.com.au/discussion/comment/104448#Comment_104448

Hi @Noelle

Thanks for your suggestions. May I ask which liquid fertilizer you would recommend for basils?

Regards,

Vincent

Noelle

https://www.workshop.bunnings.com.au/discussion/comment/119305#Comment_119305

@VincentCCS

My suggestion would be Osmocote Pour+Feed for Tomato & Herb - it is ready to use, just pour it on according to directions on the label.

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