Very tall, very late flowering plant - do you recognise it?

Hi, I noticed these beautiful flowers behind somebody’s fence, through a trellis on top of an 6ft fence. So the plant must be about 7ft. Flowers really late, this picture (sorry not of a great quality) was taken mid-November.
I would love to have one of those, considering the beautiful colour, large flowers and the very late flowering season.
Does anybody know what is the name of this lovely plant please?


Surrey
0
Posts
They flower until frost hits them, but some areas don't get much frost, so they continue flowering.
Someone else might have a different suggestion though.
I live in west central Scotland - not where that photo is...
When you don't even know who's in the team
S.Yorkshire/Derbyshire border