What is wrong with my mint?

Hi my mint has yellow dots on the leaves but seems healthy otherwise. Any idea what it could be?

 

How tall is it?, are you growing it inside? and is it a pot?

I like to keep mine short, it might a bit of a feed

 

Hi its in a pot in my porche and it is just under 1 and a half foot.

 

How long have you had it in the pot?

 

Since about March I think

 

Nice mode of transport, hope the compost doesn't stain the leather interior

Mint goes like that when it starts to get old and woody.
It really prefers quite boggy conditions that are quite rich to keep the foliage looking good.

 

I meant porch
Thanks should I repot it or just feed it?

 

cut it down and repot, you should get some new shoots.