There is no question that different plants grow in different regions of the world. The idea of getting hold of the seeds so you can plant them in your area is the intent behind the National Seed Swap Day started by Kathy Jentz, editor and publisher of the Washington Garden Magazine, She created today on January 26th, 2006. (No word on how it ended up on the 28th) Still the idea is great for any plant, flower or even things you can eat. They might not grow in your climate, or due to the soil you have, but it is fun to try anyway.
How to celebrate – Try and swap seeds with someone from across the world. See what plants you can introduce to your area. Enjoy what you consider exotic plants that are quite normal in other locations.