fertilize

verb

1. To make (the soil) more fertile by adding nutrients to it.
2. (figuratively)To make more creative or intellectually productive.

   “to fertilize one's imagination”

   “He [countertenor Anthony Roth Constanzo] also enjoys being the catalyst whereby opera fertilises other art forms: recently, he's collaborated with Japanese kabuki actors, and a project with dancers from New York City Ballet is in the offing.”

3. To cause to produce offspring through insemination; to inseminate.