I have had success outdoors in zone 5 with Kniphofia uvaria'Candlelight.' This will be the third winter I have had it in the ground. This past summer was the first time it bloomed for me. I may be in a microclimate but I can grow zone 6 and zone 7 plants outdoors with fairly good success. Sheri, zone 5, Marion, Indiana Do you like gardening? Then visit http://www.exoticgardening.com/ Do you need a freelance writer, editor, photographer or speaker? Contact Sheri Ann Richerson (765) 674-6167 SheriAnnRicherson@exoticgardening.com http://sheriannricherson.exoticgardening.com/