Banana distribution was pretty well established in the early to mid 1900s. Sea monsters and zombies would slow things down, certainly, but the technology is still there. Bananas, for example are a big export for India and Central America and Caribbean. Indian bananas would be a near impossibility for North America, due to how quickly they spoil. Caribbean ones, however, would be a great cash-cow for central and South America. Tropical is a new luxury food for colder-climates, now maybe?