Simoneton's scale was in turn developed into a "modern Bovis scale" by Swiss "geobiologist" and former Vaud cantonal parliament member Blanche Merz (1919–2002), who founded an Institut de recherches en géobiologie at Chardonne in 1979 and whose self-published books appeared from the 1980s.
In Switzerland, Ederena is being grown in the town of Chardonne in the Vaud canton where it is blended with Arinarnoa, Caladoc, Carminoir, Egiodola, Malbec and Marselan.