Bluesfan,
I visited the organic farm at the end of Tigris Road. No one was there at the time. What you'll see is a small plywood building (closed when I visited) beside a large vegetable garden entirely surrounded (on the sides and top) with green plastic netting. The vegetable plants looked healthy and attractive. There was a large plastic water tank on site.

A hand-lettered sign said, "Open on Saturdays, 9:00 to 5:00."