Sinningia hardiness reports
Brian Whyer (Wed, 22 Jun 2005 04:24:58 PDT)

There is quite a lot of information on sinningias, and many other
plants, on this website, but probably little on hardiness as it is
Brazil based.

http://mpeixoto.sites.uol.com.br/menu.html

Brian Whyer, Buckinghamshire, England, zone~8