Friends, Just how hardy is G. tristes? HAs anyone in a cold winter climate tried it outdoors? If it is so vigorous, might it also recover from hard frosts? 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 +