The bottlebrush tree (callistemon) is a native of Australia. It gets its name from the spiky blossoms, which are shaped like the brush you might use for cleaning bottles. The resemblance ends there, however, because the colorful spikes make it an excellent candidate as a feature plant in your low water garden. Its easy to grow.  Will grow in our climate of the Southwest and is an excellent pollinator attractor.  Can grow to 30-40 ft and is a beautiful show case tree to your yard.