The Collaborative International Dictionary of English v.0.48:

homegrown \homegrown\, home-grown \home-grown\adj.
   1. grown or produced at home or in a specific locality; -- of
      plants or animals. [WordNet sense 1]

   Syn: local.
        [WordNet 1.5]

   2. Originating in a particular place or region; as, homegrown
      talent; -- applied broadly, to people (especially people
      with specific skills), products of manufacture, etc.
      [PJC]