There's been a bit of activity in the comments section of this post.
Let's be clear here: I'm not saying don't plant indigenous trees. Of course we should. They're wonderful. I'm just saying don't plant them where they're gonna fail… ie "landscaped" areas. Plant them into remnant bushland / reveg areas where conditions are still pretty close to what they're used to (minus the weeds I suppose).
Advocating the use of local indigenous species in the typical urban/suburban street verge is misguided. Apart from them not doing well, they're too small. They don't provide the canopy cover we need to shade our roads. Tuarts might be an exception - there's always an exception - but overwhelmingly the principle holds: introduced species are far better at doing the job an urban street tree is required to do.
If you're interested, read the Town of Claremont Street Tree Masterplan pre-amble I wrote some years ago. At least look at the section "How do we decide what species to use?" as it pretty much tells the story.
PS…maybe I should chuck in a bit here about my background for those who aren't familiar. I started in Parks and Gardens at the City of Nedlands back in 1982 so I've been selecting, planting, maintaining and watching trees in Perth's verges, parks and bush reserves for 35 years now. I've seen what works (and what doesn't) over the long haul.
PPS….I'm also aware that some of the subscribers to this blog have been in the (Parks) caper even longer than I have but I'm pretty confident their experience (and views) would align with mine on this. Put it this way: they're not throwing molotov cocktails at my house. Always a good sign :)