"john east" wrote in message
...
Recently bought a mint plant from a supermarket and have been growing it a
pot on the kitchen window sill. The other week we put it in a bigger pot,
but now have a lot of ants coming out of it.

Have just submerged the pot in a large jug of water. Will this do the
trick? If so how long will it have to soak? Or is there a better way?
thanks.

Yep, drowning the ants will do the trick. How long will they take to
drown? Who knows?
As you repotted it the ants are likely to have been in the compost you
added.
Is there a better way? Probably by making sure there are no ants in your
compost so you don't have to drown them.