Zantdeschia hardiness
Steve Marak (Sun, 14 Jun 2009 09:20:41 PDT)

On Sun, 14 Jun 2009, Jim McKenney wrote:

Jim,

Most of the hybrids and several species I've tried outdoors here (NW
Arkansas, USDA zone 6 historically, zone 7 since 2000) have wintered over
well, with the notable and to me counterintuitive exception of Z.
aethiopica, though I suspect it would be fine in some other zone 6
climates.

I've had several of them outdoors since the early 1990's, so I'm confident
enough now that for hybrids, especially those which obviously have
rehmannii in their makeup, I just plant them out and forget them. They'll
be flowering any time now. The large yellow hybrids ("elliottiana" types)
also do well.

No data yet on jucunda or odorata - they're recent acquisitions and I
don't have enough stock to risk yet.

Steve

-- Steve Marak
-- samarak@gizmoworks.com