Hi, I have a curry plant in a pot outside my house. It's been doing
really well and until recently has had bright yellow flowers and a great
smell.

Over the last few days I've noticed the flowers are going a horrible
brown / yellow colour, the smell has gone and it's covered in ants!

The thyme, lavender, mint, rosemary nearby are not affected.

Is something wrong here? Do they normally go brownish round about now?
Is there anything I can do about the ants?

Thanks for any advice,

Tom