Manassas, VA
Erin's Elderberries, inferred from its name, likely sells elderberry syrup, jam, and immune-support tonics at DC/MD/VA-area farmers markets.
Location
Historic Manassas Farmers' Market
9201 Center St., Manassas, VA, 20110
City of Manassas Farmers Market
9431 West Street Harris Pavilion Manassas, VA 20110