At my last house north of Denver, I used to have (in addition to other varieties) this absolutely gorgeous black daylily with a bright almost florescent yellow-green throat. Very much like this one:
I didn't dig it up to bring with me, and I've always regretted it.
That's really gorgeous!! I have about a million Stella Del Oro's--they are the most common small day lilly and survive neglect, cold and hot weather and mine need dividing every time I look at them. I've supplied them friends, co-workers and a total stranger who walked by when I was dividing a clump that had tried to take over a spot where crocosmia was growing.
But I do have a Japanese iris (beardless type sort of medium tall) that survived being forgotten one year--it came as a part of mixed bag of Japanese iris--purple or yellow in this case) The yellow ones didn't survive but several of the purple guys did--purple was an understatement--they are virtually black when they first open--the flowers are flatish and BIG the very center has some bright yellow markings. As the bloom ages it gets lighter in color but ends up a very dark purple.
There is a really good iris grower/dealer in Boulder. Welcome to Long's Gardens - Iris Garden in Boulder Colorado
That's what they specialize in, you can buy all kinds of named varieties, tall bearded, intermediate, dwarf and miniature dwarf types...
They also have fields where you can go during blooming season and dig your own...some are marked with their name, others are "anonymous"--but you get to see them blooming in person before you dig them. It's a fun field trip.
I love that--Oregon has an area just south of Portland where there are a lot of bulb (or rhysome) growers--in season you can do tours--iris, tulip, dahlia etc and they all advertise and do tours turning bloom season.
Iris do well here. We have some tall bearded scattered around in our "meadow" (weed patch) and also have some aril bred...which look a little like the tall bearded but are more adapted to poor gravelly soils and dry summers (from the mideast). They don't do as well, but frankly I have them planted in an awful area where I didn't think the tall bearded would even be able to grow at all
I've got a smallish dark blue iris that spreads like a weed. I put it in a couple of places that didn't want to grow anything (bad soil, too much or too little water and shaded by the house--it didn't care--blooms late spring each year I chop out chunks of it to give to people who have seen it in bloom. Maybe you'd like me to ship you some when it stops being so freaking cold (and wet)?
And the deer DON'T EAT the iris!!!
Any time deer are a common garden pest that's such a plus. I wish I could find a squirrel resistant tomato...