Don't forget some gingers, for gorgeous foliage and flowers nearly all year 'round. Some need shade, such as the Alpinias and Kaemferia (Peacock Ginger, a low growing one) but most can take at least half a day's sun just fine, with adequate water. If you're growing Canna and bananas, you're going to be watering a lot!
This is Alpinia, does best with only morning sun. Next is Hedychium 'Dr. Moy' with wonderful fragrant flowers. Both have tall, lush variegated foliage that gives a very tropical look.
