Hemerocallis imperialis?
J.E. Shields (Fri, 25 Nov 2011 12:45:58 PST)

The species is most likely meant to be Hymenocallis imperialis. I'm pretty
sure there is no "Hemerocallis imperialis;" Hemerocallis do not have
bulbs. Hymenocallis do have bulbs.

The Hymenocallis will need to be protected from frost and freezing in
winter. It should also be kept on the dry side then. In spring, when
danger of frost is past, move the pot outdoors in full sun or light shade,
water and feed well.

Jim Shields

At 09:36 PM 11/25/2011 +0100, you wrote:

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Jim Shields USDA Zone 5
P.O. Box 92 WWW: http://www.shieldsgardens.com/
Westfield, Indiana 46074, USA
Lat. 40° 02.8' N, Long. 086° 06.6' W