Zantdeschia hardiness
J.E. Shields (Sun, 14 Jun 2009 13:16:57 PDT)

Jim McK.,

I have two Zantedeschia in the ground outdoors year round -- and as for the
Hymenocallis liriosme, these are very close to my greenhouse walls. One of
them, Z. 'Green Goddess', survives right up against the wall, but does not
bloom.

The other, Z. 'Black Pearl', survives and blooms each summer.

'Green Goddess' is a form of aethiopica, and might be expected to be
tender. A different form of aethiopica, from mountains in the Eastern Cape
Province, I had hoped would be hardy. I never got it tested properly here.

'Black Peal' is one of the hybrids with rehmannii genes in it, and
rehmannii is probably going to be the hardiest of the genus. Unfortunately
I do not have any rehmannii anymore. We would need seed from wild
populations from the coldest parts of its range to hope for zone 6 or 5
hardiness, I would expect.

Jim Shields
in central Indiana, USA
USDA zone 5

At 10:57 AM 6/14/2009 -0400, Jim McK. wrote:

*************************************************
Jim Shields USDA Zone 5 Shields Gardens, Ltd.
P.O. Box 92 WWW: http://www.shieldsgardens.com/
Westfield, Indiana 46074, USA
Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA