Just because it's pretty. Melaleuca wilsonii doesn't have a common name, but this paperbark grows very well in one of the driest parts of my garden, and I saw it growing well and flowering prolifically in the sandy Little Desert three years ago.
Yesterday I had a look at the trend maps on the Bureau of Meteorology webpage. This is the mean temperature graph for my area. They paint a scary picture and I think I'm going to need more plants like this in my garden in the future.