Vertical gardens and more joys of living in the tropics

Here's a cool NYT article about vertical gardens. Apparently in Manhattan and elsewhere people are going to great lengths to recreate rainforest conditions in tight spaces.

A friend who was visiting us recently was amazed at the floral abundance in rural Colombia, even in our relatively cold-weather part of the country. The friends was amazed to see exotic things growing wild everywhere, plants like orchids and bromeliads that his grandfather had had to carefully tend and pamper in an elaborate greenhouse to get them to grow in Nebraska.

So here's one more reason I'm thankful to live where I do.