It does well in Pittsburgh PA On Feb 22, 2015, at 8:01 PM, penstemon wrote: > I’ve never grown this. Bulb catalogs claim it’s hardy to USDA Zone 5 (-29C). Is this true? And, if so, why? > > Bob Nold > Denver, Colorado > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/