British landscape designer Sir Humphry Repton mastered the art of the sell. His signature "Red Books," so-called for their signature moroccan leather binding, conveyed proposals to clients with detailed 'before' and 'after' sketches.
Visitors to the Poison Garden at Alnwick Castle are greeted with a big black gate that warns "These Plants May Kill." Lurking beyond the miasmatic fog is a collection of over 100 botanic assassins & intoxicants that include the legendary deadly nightshade, strychnine, and mandrake, as well as ubiquitous garden plants like foxglove, datura, and laburnum.
A Victorian-era menagerie still grows today, at an historic country estate in Portsmouth, Rhode Island. With its century-old living sculptures, Green Animals Garden is the oldest topiary garden in the United States.