Some of the native plants in the Mt Annan Botanic Gardens near Campbelltown, south west of Sydney.
The last three photos are of the Human Sundial (no. 14 on the map of the gardens). Stand on the date on the analemma (figure eight) and you become the pointer in the sundial. Look along your shadow to see the time. Don't forget to add an hour if daylight saving is in effect.