One of the joys of traveling is that you can visit gardens in other parts of the world—places with different climates growing plants totally unlike those in we have here in Colorado. I just returned from a long overseas trip that included visits to botanic gardens in both Australia and Singapore. Talk about different! On the one hand, the tropical blossoms and exotic ferns were a delight to the senses. On the other hand, there is no way I could ever grow any of them at home, except as houseplants. And even then, our low humidity would discourage most of these species.