Vancouver City Council passed a motion in 2006 to encourage 2,010 new gardens by 2010. Now there are more than 40 community or resident-shared gardens with more than 1,700 garden plots and more on the way. There is a great brochure that the City of Vancouver has put out with a good map that shows great walking and bicycle tours of the various community gardens around the town. As it says on the back of the brochure:

Community gardens in Canada peaked during the World Wars. In 1943, there were over 50,000 Victory Garden plots in Greater Vancouver.

So we still have a ways to go to get back to that level of garden plots in the city, but there is tons of land available, and plenty of support for people to get out there and get gardening. More information can be found here.