Vancouver has a Green Streets program that is pretty awesome!
Local community volunteers plant gardens in roundabouts/diversions that the City of Vancouver pays for. It’s then basically in the hands of that volunteer to maintain.
If you volunteer, here are some perks: free compost in the spring & fall, advance notice of plant giveaway, green streets newsletter, access to a Master Gardener for advice and a volunteer appreciation party!
A green sign means that “garden” is available, a yellow one (pictured) means it has a lovely volunteer.
Interested? Call 604-873-7204, visit www.vancouver.ca/greenstreets or email firstname.lastname@example.org