Tropaeolum pentaphyllum
John Grimshaw (Mon, 20 Oct 2008 08:55:22 PDT)
Uli Urban wrote about Tropaeolum pentaphyllum:
I have never tested with my plants but I
think it is not very hardy and is not suitable for outdoor cultivation
in winter cold climates below freezing.
This has always been my view as well, but earlier in the summer I was
visiting a garden in the Cotswolds and saw the familiar flowers of T.
pentahyllum twining round something else. I expressed my surprise and was
told it was hardy there! The garden in question is even higher than we are
here, so I shall put my plant out for 'hardiness testing' next spring. It
certainly doesn't deserve precious greenhouse space...
John Grimshaw
Dr. John M. Grimshaw
Sycamore Cottage
Colesbourne
Cheltenham
Gloucestershire
GL53 9NP