Dear Mimy: I believe Geranium macrorrhizum 'White-Ness' came from the Ness Botanic Garden (hence the name) in the U.K. and has been propagated by Crug Farm Plants (Bleddyn Wynn-Jones) in Wales. Bleddyn would be able to tell you whom he obtained it from at Ness. No doubt they have collection data on it. Sincerely, Robin Parer Geraniaceae Nursery