overgrown vs prolific

overgrown

adj
  • Having grown bigger without developing maturity or changing character. 

  • Having large numbers of plants which have become too big, and are hence spoiling the picturesqueness of a garden. 

prolific

adj
  • Fertile; producing offspring or fruit in abundance — applied to plants producing fruit, animals producing young, etc. 

  • Similarly producing results or performing deeds in abundance 

  • Of a flower: from which another flower is produced. 

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