Here is a picture I took a year ago in October. We were moving from one house to another. We had neglected our garden terribly, and it all looked like weeds.
During the last week we were in our old house, we wanted to get the garden looking halfway decent for the buyers, so we spent a couple of hours tearing out all the "weeds". Imagine our surprise to find that all these vegetables had kept growing, even after we had quit watering, weeding, or caring for the garden at all for several months.
We live in North Carolina, and being a beginning gardener, I did not know the growing season was so long. I hope that in future years I will keep planting and watering much later in the summer.