Hi All, I tried to find some more exact information about the cold hardiness of some Lycoris species, but every webpage says something different. (somewhere the L sprengeri hardy to USDA zone 6 but the other page is warning: "do need to be brought indoors for the winter" in the UK.) Has anybody got information about these plants? Which one is reliably frost hardy at which USDA zone? I would be interested mainly the species listed below. L albiflora L aurea L caldwellii L chinensis L haywardii L houdysellii L longituba L radiata L rosaea L sanguinea L sprengeri L traubii Many Thanks, Barna Sipos Hungary, UK