His 127-acre farm, where bendy old oaks give way to neat rows of waist-high tea bushes, is the only place in America that produces tea commercially.

ECONOMIST: America's tea boom

There are over 30 Assam and Chinese varieties (as well as a wide range of herbal teas), and tea production follows the time-honoured system of hand plucking the bushes.

BBC: Twenty tastes of Britain