I don't have FB to compare but the clue from BING is probably closer to the mark as compared to this: 

Vernon Park Gardens
6025 S Vernon AV Chicago 60637
https://maps.app.goo.gl/jKrHRtAeFQScQj976?g_st=ac

Several vacant lots in a Residential area, often used as Community Gardens. Will report back again after a windshield survey.