I grow all of my crinums in huge pots, because I am hoping to move soon and that would make it easier . I have about 10 tree sized pots, and I mean, they are huge. Normally I leave them out in my greenhouse with a little heater for the winter....but last December we had a horrible greenhouse fire and I am just lucky to have any plants left....so we are not going to heat it this winter. My question....the fired melted all of my plant tags so I don't know who is who in their pots...how hardy are crinum lilies in general ? Would they withstand an East TN winter....which can be mild, OR can be cold . We are officially zone 7, but our temps can dip down and stay down for weeks at a time ( sometimes ). I really don't have room to bring all of these in, and all of my brugmansias in, and all of my alocacias in, so just hoping to find out more about the hardiness of crinums. Thanks !