Urban agriculture is a growing trend around the world. But given its environmental credentials—such as being local and transparent—food grown sustainably and in city environments is often married to a hefty price tag. We speak to co-founder Christian Hampson of the Yerrabingin Indigenous rooftop farm—a 500-square metre garden created on the rooftop of a Mirvac office block in Sydney—about accessibility, the rise of Australian ‘agritecture’, and what his relationship with native plants and urbanisation looks like.