In Vancouver, Sole Food Farms has leased, for $1/year, a former PetroCan gas station one-acre lot adjacent to the Downtown Eastside, and made an urban orchard on it. Five hundred fruit-bearing dwarf species, planted over 800 containers, will be fully cropping in 3-5 years. In the meantime, the containers also produce ground crops, sold to restaurants and grocery stores. Downtown Eastside residents are hired, the produce is organic, it is intensive farming with an enormous embedded social energy.
Sole Food has four sites throughout the downtown core; on this one the ground is contaminated, being a former gas station, thus the above-ground containers, which can also be moved if the land is reclaimed by the owner. There are always development pressures on land in a downtown area, an acre is a large plot and the cost of de-contamination is linked to technological advance, so the land could be developed: condos and such. However, there is something so fundamentally optimistic about an orchard on the move if it ever comes to pass.
Vancouver is so forward-thinking I don't think it is actually part of Canada.