The port of Baltimore handled about 600,000 barrels of flour and 70,000 bushels of wheat mostly shipped to England - more than any US port except NYC. Ellicott's mills supplied flour to Baltimore. Wild garlic was probably a problem in the wheat from Howard County. Oliver Evans' book (who visited Ellicotts mills, book was co-written by a brother of the Ellicott founders) contained an entire section on the wild garlic problem.