Sacha wrote:
Sigh.....Rosa bracteata. Sorry.

Ah, now that makes sense. You conveniently combined the common name
'Macartney Rose' with its proper name. It's a parent of 'Mermaid' and
a magnificent plant in its own right. Unfortunately, it rarely does
well away from the most southern counties since it needs heat and sun
and even down here it only performs well in good years. I tried it in
the Midlands many moons ago and only ever saw half a dozen of its big
white saucers at any one time. Nice fragrance, good foliage, but sadly
more at home in Montpelier than Morecambe.