cherry plum vs lilac

cherry plum

noun
  • Prunus cerasifera, a deciduous ornamental Eurasian shrub or small tree, having white flowers and small red to yellow edible fruits. 

  • The fruit of such a tree. 

lilac

noun
  • A large shrub of the genus Syringa, especially Syringa vulgaris, bearing white, pale-pink, or purple flowers. 

  • A flower of the lilac shrub. 

  • A pale purple color, the color of some lilac flowers. 

adj
  • Having a pale purple colour. 

How often have the words cherry plum and lilac occurred in a corpus of books? (source: Google Ngram Viewer )