What happened to the rest of your plants? I've got a few guerilla gardens too and I've lost quite a few as well.. but not really until I decided to put out more seedlings about a month ago. For some reason something ate them but not the other plants that were transplanted back in late April- early May. I had one plant start to flower already for some reason. My guess is that I was getting shaded out because the one next to it wasn't showing any signs of flowering..but the day after I noticed it was flowering I came back to give it some bloom nutes and deer ate it all the way down to its first set of leaves. A two foot tall plant.. I couldn't believe it. I have some auto's nearby that have been flowering for over a month and they haven't messed with any of them.
How has the weather been where you are? East or West coast? I was getting nervous there for a while because we were getting rain like 4-5 days per week from the end of May up until the end of June.