City of Unley
This council actively encourages verge gardens, including providing a paid service to remove dolomite if you don’t want to do it yourself.
They also have a Greening Verge Incentive program. Subscribe on their website for updates and provide examples.
“Take a stroll down Edmund Avenue, Unley and be inspired by contemporary, cottage, natural and formal layout examples, including different path ideas. All meet the guidelines of safe plant choices and low plant heights to ensure good sight lines for road users.”
You need to complete an application to council.