Daylilies will indeed survive here, Heather. In fact, the American Hemerocallis Society
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(hemerocallis being the Latin name for daylily) has nine chapters in Florida. If you'd like to get some ideas about how to use daylilies in your landscape, consider visiting one of the society's display gardens, which are listed on this page:
http://www.daylilies.org/AHSreg12.html#Flori...