I have this [red/deep pink flowers] and mine doesn't have any scent either or if it does it is very faint.

Thank you for that answer, I put the pot near the door on purpose to get the scent but might now move it somewhere else. Whereabouts do you have it in your garden please? Does it have to face South?

Mine faces west by the conservatory door.

Thank you, yesterday I moved mine from a pot and planted it in a West facing border too