Tropical lilies can be saved by wrapping in wet newspaper and double
bagging with heavy duty garbage bags (getting the majority of the air out)
and storing in a garage that is usually in the 40-50F degree range.

T.Cannas can be left in their baskets and pulled out of the pond after
frost knocks them down. Trim off, store in same garage in containers to can
added water to just to keep them moist (not wet).

Palms do well indoors, taros do too, if kept in a sunny area. Depends on
the type of canna. ~ jan