Can anyone recommend a blue perennial sweet pea? Scented would be a bonus.Thanks!
I don't think there are any.
Rosy, pinky shades and white only, I think. They're not scented either as far as I know.
I've had the white one in the past and it certainly wasn't.
The nearest you would get is a sort of lavender blue. If that suits you then look for Sweet pea 'Lord Anson'. It is perennial and scented but can be quite hard to find.
I think Sutton's do it.
It hates being wet in winter, so may not be reliably hardy.