flower box vs jardinière

flower box

noun
  • A container in which flowers or plants are grown, usually affixed outside just below a window. 

  • A comment in source code that spans several lines, serving to introduce the source code that follows, and bordered by asterisks. 

jardinière

noun
  • An ornamental pot for the display of live or cut flowers; a planter. 

  • A vegetable soup or sauce. 

  • A lappet forming part of an old headdress. 

  • Diced, cooked vegetables served as a garnish. 

How often have the words flower box and jardinière occurred in a corpus of books? (source: Google Ngram Viewer )