homegrown

• home-grown

home +‎ grown

homegrown

1. Grown at home.

   Each spring they planted a garden and each summer they enjoyed homegrown vegetables.

2. Created or constructed in an informal or amateur manner; done without formal assistance, as from a business, organization, or professional.

   The design, though homegrown, was robust and well planned.

3. Raised or brought up in one's own country.
   • 2012 August 1, Owen Gibson, London 2012: rowers Glover and Stanning win Team GB's first gold medal‎, Guardian Unlimited:

     One had never stepped in a rowing boat until 2008, the other will return to serve in the Royal Artillery in September. But Glover and Stanning will now go down in the record books as the first homegrown gold medallists of the London 2012 Olympics.

4. Originating in one's own country.
   • 2020, Joel Swanson, “Are anti-Semitism fears stopping Jewish Dems from supporting Bernie Sanders?”, in The Forward:

     As historian Paul Hanebrink writes, the far-right in Europe could not accept that the success of the 1917 Russian Revolution represented genuine homegrown support for leftist politics, so communism had to be explained as part of "a Jewish plot to overthrow civilization and impose foreign rule on the nations of Europe."

• homespun