Well, one can dream, right? I've also had a vision of the South Side Botanic Gardens at Jackson Park (surrounding the Osaka Garden) complete with regular sustainable/urban gardening classes...
In the meantime, there is the HYDE PARK GARDEN FAIR. For two days. Only!
WHEN: Friday, May 13 (9am-6pm) and Saturday, May 14 (9am-4pm)
WHERE: Hyde Park Shopping Center/ 55th Street and South Lake Park (60615)
MORE INFO: http://www.hydeparkgardenfair.org/
If you like plants at all, it is definitely worth checking out!