I'd imagine yellow selfs pop up fairly regularly in seedling beds, they do in mine anyway. Had one bloom out of a different cross last year that I actually liked quite a bit better:
Don't know if it shows in the picture or not, but it has a little bit of a pink undertone that makes for a very "happy" flower. I smiled every timed I walked by it last spring. Probably won't be enough to save it from the compost pile
, but it did get me to make a cross with it. Maybe it will live on through its children.
A couple of its siblings were kind of interesting.
The peach pink had awful branching, but I think it was a result of weather so gave it a second chance. Not sure what to make of the white. I don't mind some color on white irises, but prefer something more like this (different cross).