I've seen this growing in a garden in the southern mountains of New Mexico and here in the northern part of the state. Both areas are nominally USDA zone 5. > Kniphofia uvaria Z8--the common "red hot poker", and as such far >hardier than Z8. The Pfitzer hybrids were raised and selected in Germany, >for instance. However, it has been hybridized and selected so I kon't know >exactly how hardy the species itself is. - Barbara Leaf and Stone Barbara L. Weintraub Santa Fe, NM 87508-8769 Elevation 7000 ft. blweintraub1@earthlink.net