These trees look like something Willy Wonka might produce in his factory – everlasting toffee, seven-day chews, three-course-dinner bubble gum, you get the ideas. They are eucalyptus deglupta.
It’s also known as the rainbow eucalyptus, Mindanao gum, or rainbow gum – the only type of Eucalyptus that grows naturally in the Northern Hemisphere.
It’s found in Kauai, New Guinea, Ceram, Sulawesi and Mindanao and is used mostly for pulpwood – paper eventually.
The colours emerge gradually. Pieces of the bark are shed annually at different times, revealing a green inner bark and over time the colour darkens and changes to blue, purple, maroon and orange tones.