Re: SPEC: autumn die back
Tectorum has never made it through a winter here.
The strain of I.cristata I have goes to bed quite early, even before the last of the Sibs die back. Just as a side note, we've managed to trace this one's history back as far as a border in a tiny garden in Lumbee, BC.
I'm not familiar with either milesii or lacustris.
Newport, WA z4b