My potted rosemary bush has dandruff

[rowan1971]

... or something like that. The leaves are covered in quite thick layers of whitish dust. Yes, I am a housework slut, but I don't think it's that sort of dust. Is this a disease? Is the rosemary still OK to eat?

Awww, come on guys.

mine has this too...no idea though, will be watching...

One more bump, then I'll try again this afternoon. Maybe all the gardening types are out there mulching or somesuch.

bump.

white fly?
I had it on my strawberries

Powdery mildew? If it is, you need to remove the infected leaves (I wouldn't recommend eating them).

powdery mildew on rosemary

Thanks Muffin - that's the fella. It's all over the bush so guess it's destined for the bin. Ta!

there is nothing worse than dandruff on your bush.....

(sorry, couldn't resist )

TBH, I'm surprised it's taken 2 days for someone to come up with a 'bush' comment. Can't help feeling I've got off lightly.

In theory you could spray it with a fungicide, but I'm not sure if any of the ones you can still get (a lot were taken off sale to the public a couple of years ago) really do the job. And then you might not want to eat rosemary that has been sprayed with chemicals.

Unless it is a huge and well-established bush , or very dear to your heart in some way, I'd rip it out and get a new one.

My bush is indeed huge and well-established, with a wide social network.

My rosemary plant, on the other hand, is puny and frankly a little annoying. In the compost it goes.