Two guys sell amazing sweet corn from the back of a van on Port Royal Avenue (between Henry and Ridge Avenues in Roxborough, near the Andorra Shopping Center). One of the guys has an 80 year old uncle with a farm in South Berlin, NJ. Every morning, he picks up prize winning corn from the farm, and whatever else is in season. He then swings by the Regional Produce Market for additional fruits and vegetables. The corn is the best I've had in a long time, big juicy kernels, very sweet. The van is there weekdays until 6. I don't think they are open on Thursdays, and I'm not sure about Sundays. Not sure how late they are there on Saturdays. Nice guys...if you go, ask Joe about the wild roadside squash!