In article ,
Bob Hobden wrote:

Tropaeolum speciosum?
Often said to get bigger than you require but I have yet to see one that
has.

Thanks, but completely hopeless on sandy soil in Cambridge. It needs
cool, damp conditions, at least at the root. I have tried several
times; none thrived, and only one lasted out the first summer.


Regards,
Nick Maclaren.