I saw dill in more than one booth the last time I was there. Someone was even selling it potted.
Well it's a bit early to be canning pickles but it should be almost everywhere that they sell produce
Try Parker Farms or Red Barn Herb Farm
Millsap Farms
The only way to know is to go and look, it changes weekly. Have seen some in the past. I don't recall any herb specific vendors. I would check out some local farms and greenhouses as well!
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