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 only started planting them about 3 years ago and I'm already ripping out rhizomes annually. I will eventually be replacing them with natives but they are such an easy, pretty plant, and the foliage stays nice all the way until frost.