The Rainbow Eucalyptus is an amazing tree. There is a row of them outside of the Ritz Carlton in San Juan Puerto Rico. They have bark that contains most of the colors of the rainbow, as seen in the pic. They have this peely type bark that as it unfolds, exposed the differently colored layers beneath. I'm a former landscaper and can appreciate the variety of plant features our earth has to offer. They need a warm climate to grow. I've also seen them in Hawaii and Miami at different botanical gardens. They are cool, underused, and grow fast! 20 feet in 3 years.