Influenced by the many lush tropical gardens in the coastal neighbourhood and overseas. Tropical plants are also amazingly hardy. It also helps that Bilgola is full of red volcanic soil so everything grows really well!
Good example of layering - can use these sorts of plants in most of your garden beds. So you've got tall palms at the back, the Elephant ear adds drama, the cordylines (red ones) colour, and the lower philodendron covers the ground.