Friends, Hearing about all these wide spread cultivations, tempts me (of course). What is the cold tolerance of this species. ? Surely the East Coast can't be that much milder than mid-west ? Or am I dreaming? Appreciate your thoughts on absolute hardiness of this much admired species. Thanks for input. Jim W. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 Zone 5 Record low -23F Summer 100F +