Nick wrote


I have just removed a C. armandii that has got out of control.
The location is a good one, next to the house wall and facing
south-south-west, and the soil is good and well-drained, but
this is Cambridge. The problem is that the area is only about
1.5 metres high and 3 long, so I need something that I can either
hack back or won't grow above 3-4 metres. But it DOES need to
be vigorous to 2 metres, to cover a waterbutt.

Passiflora caerulea can't take the winters; P. incarnata can,
but it's probably too wet in winter for it there. Holboellia
grows well but doesn't flower due to late frosts. And so on.
I already have plenty of honeysuckles and clematis, so would
prefer something better than a common one of those, but may be
out of luck.


Tropaeolum speciosum?
Often said to get bigger than you require but I have yet to see one that
has.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK