Where are you from? The rose, as you name it, was developed in the
Netherlands, by this company. If you are in Europe, you might want to
try to contact them:

Verschuren / hoofdpagina[/quote]

Thanks everyone for the info - which confirms what the one internet reference says. What puzzles me is that I bought it on a UK high-street non-specialist general store (Wilkinsons), so expected it to be a common rose. Instead, it's hardly mentioned anywhere and the one reference there is says it's a hybrid tea and not a floribunda. I just wonder whether it really is White Swan or whether it's actually something else and has been incorrectly packaged. Time will tell! It seems to have settled into the ground quite happily. Probably find out it's not even white . . .