Gay's Gingers is a wonderful resource for learning about the many wonderful types of ginger hardy in the south that can provide a beautiful addition to the landscape. It is well organized and includes many helpful photos and very useful information on how to grow each type. Check it out!
The Tropical Look: An Encyclopedia of Dramatic Landscape Plants
Want to create a tropical paradise even though you live in an area where it just gets too cold for most tropicals? In The Tropical Look: An Encyclopedia of Dramatic Landscape Plants by Robert Riffle (Timber Press, 1998; $49.95) you'll find a lot of wonderful ideas for plants that can provide that look. The book is filled with over 400 color photos and several useful plant lists to assist you in finding the right choices for special locations.