Name: Suzanne/Sue Sebastopol, CA (Zone 9a) Sunset Zone 15
This is a favorite vendor http://geraniaceae.com/cgi-bin...
They offer mostly hardy geraniums, they do not carry "any forms of Pelargonium x hortorum (zonals), P. x peltatum (ivies), or P. x domesticum (regals/Martha Washingtons)."