I made a faux pas when I wrote:
> I think the subseries, I. chrysographes, grows well here in Zone
> 3 even though it is indicated that it grows in Zone 4 and up.
The subseries is called chrysographes....the individual species is
Ellen Gallagher / firstname.lastname@example.org
Siberian iris robin / email@example.com
Northern New Hampshire, USA / USDA Zone 3