Rancho Gordo Heirloom Beans in Phila.?
Green aisle grocery has beans from them, but only a limited selection.
You can get equally good dried beans, though also not as varied a selection, from Cayuga Organics at the Fair Food Stand at the RTM. (though Cayuga had a fire at their farm so I'm not sure of the status of the new crop that should be coming on the market in the next couple months)
Anyways, those and some pricey Italian ones from Claudio and DiBruno Bros. are the full extent of reliably high-quality, new-crop beans that I've been able to find in Philly.