Food gardens are popular development projects, not just for the cultivation of material sustenance, but also for the cultivation of the self. A quick browse of garden fiction lists exhibit the garden as a powerful tool for individuals: self-realization and escape into reflection and transcendent communion with nature are common themes. The significant percentage of gardening that appears to be performed with some narrative intent belies gardening's focus on individuals, however, and draws attention to the social and communicative nature of gardens -- even beyond the obvious domains of community gardening.
Grenness, Johannes, 1914, Woman in Red Dress in Garden with Poppies and Summer Day in a Garden, courtesy of Blogger 'SPhera's excellent entry on Johannes Grenness (with several worthwhile gardens to see).
World Connect, 2011, Niagadina Women’s Community Garden, http://www.worldconnect-us.org/projects/project.php?project=582.