Re: Iris gracilipes
Bill Shear stated
"My impression is that I. gracilipes is found at higher elevations in Japan
where the summers might be milder. Is this correct? If so it should do
fairly well in the Appalachians."
Mathew states that it is from the mountains of Japan which suggests that
your suggestion is correct.
Someone else mentioned Japan being cool but it can be very hot in summer, at
least as far north as Tokyo. Hokkaido is far milder and very much like the
Washington-British Columbia climate - it even looks just the same as that area.
Ian E. Efford
Ottawa zone 3