Although it's not an Oz native, it IS a NZ native, so I thought I'd post it in here. I planted mine out about 6-7 years ago when it was about two feet tall. It grew pretty fast then slowed up. I've read it doesn't get very big. It doesn't look like it will. At least I hope not because I've got it in a spot right next to the path down the side of the house. On top of that, right next to it I planted a Metrosideros kermadecensis...just a little further up and next to the fence and property line. The M. kermadedensis is only about four feet right now. It will have the redder blooms, while the M. villosus has the more orange blooms.
-Ron-
Everyone is entitled to their own opinion, but not their own facts. Daniel Patrick Moynihan