Hardy edibles for the vacant lot?

[Radiopeg]

We bought a lot that was over grown, and have been surprised at what we found. What did the best? The lumpy lemon, the ti plants, gardenias, anthuriums. The mac nut was pale from lack of food. The things that did the best were the stuff that could survive in the shade of the uluhe and guava that abounded. We found many things that survived, but most were in pathetic, leggy, non producing state. I'd go for the citrus. Oh, and the turk's cape hibiscus. You'll see it often on the right of ways.

Peace and long life