Suzanne, I have boxed up about a half-dozen 'White Butterfly' rhizomes for you. If you would kindly send me your PayPal account name (probably your email address), I will invoice you through PayPal. The box weighs just under 2 lb. so the shipping would be a flat $7.95.
Shannon, both the Canna and the Ginger would be OK outside year-round, but you would want to heavily mulch them during your winter months. My plants have easily survived 15F without mulching. They both will die back after the first heavy frost or freeze, but will return in the spring with more numerous plants than the year before. Alternatively, you can always dig up the rhizomes/corms and store them through the winter months if you choose.
Ken Ramsey, Certified Mississippi Master Gardener