In article , Sacha
writes

assume you have tried Secret Seeds
somewhere near Tiverton, Devon?
They have Ipomoea purpurea, I. purpurea 'Milky Way',

I grew Milky Way about three years ago, looked like bindweed climbing up
the trellis next to the front door and I wasn't impressed!

--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk