Flanders wrote (edited )

Hmm, I thought rewilding was more about restoring fragmented ecosystems &c., like those iconic pictures of wildlife overpasses, rather than human-oriented putting more green in the cities, like the mentioned Vancouver plan of ensuring that “every person living in the city are within a five-minute walk of a green space”. Not that this isn't a noble goal, of course.

Actually looking at the links, I think the article might just present the projects a bit one-sidedly. The Vancouver action plan does feel a lot broader than the article implies, after skimming it a bit.

This paragraph near the end of the article is quite interesting, though:

Mr Ennis added that the HSI encourages the public to “partially rewild their gardens” with old wood, water features and wildflowers to provide “habitat for our native reptiles and amphibians.”

I recall reading about some Flemish architects using left-over construction materials to create a variant on the prairie garden, which they called a "puintuin" (rubble garden). Those are a similar way of rewilding gardens, I suppose.