And why?
I like bottlebrush (Callistemon), they've got a funny shape and they attract a lot of nectar eaters so they're fun for critter watching. The yellow ones look like a corn cob too eheheheh.
Look at these eastern pygmy possums having a nibble. Probably weren't expecting to be interrupted mid-snack.
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I like artichoke/cardoon flowers as well. They have a narrow window when they are at their best, but I love when they get huge and you see bees just rolling around in them like they're swimming in a chocolate fountain. It must be so luxurious for them.
Oh and nootka rose. They smell wonderful for such a long time, and once established they are absolutely bulletproof. Even once the winter comes the red/orange rose hips looks nice.