Re: species irises
I've plugged before and will continue to plug is I. graminea. It seems to
be tough enough to stand up to my occasional neglect and offer the greatest
little flowers alluringly dressed in a fountain of foliage. It grows fine
in Delaware and fine in Ohio.
I.graminea also grows well in Ottawa and flowered for me soon after I
transplanted it from Trevor Coles' garden. I have it in shade, partial
shade and sun and it flowered in all three locations although the plant
height is far less in the sun.
Ian E. Efford
Ottawa zone 3