On Mon, 24 Nov 2003 16:47:12 +0000, Victoria Clare wrote:

Tropaeolum tuberosum - anyone tried that, while we are on the subject of
Andean roots?

Rareplants.co.uk seems to think it is hardy, and it certainly looks
decorative.

I don't know if I could bear to dig it up just to eat the roots unless they
are particularly tasty though! Though presumably the rest is edible like
nasturtians too.

I have the impression that it needs good drainage, esp. if you
have a wet winter. I've never been able to establish it here,
although I've had T. polyphyllum for over a decade. (In that time
it has wandered afar and is now snug under a concrete patio,
whence it comes up around the edges.