Botanischer Garten Frankfurt

This guide to the Botanischer Garten Frankfurt centers on a bed of castor bean plants, the source of ricin, and the 1978 assassination of Bulgarian journalist Georgi Markov on Waterloo Bridge in London by a poisoned umbrella tip. It walks the garden's row of thirteen beds, where foxglove, autumn crocus, and other cures-and-killers grow side by side, and traces the story back to Johann Christian Senckenberg, the physician who founded Frankfurt's first botanical garden two hundred fifty years earlier.