If you buy an iris in a nursery around here chances are it will be Mary Frances like this one that has just started blooming in my SJC garden.
I am not sure why nurseries sell so few iris. They have beautiful flowers, few pests or diseases, are drought tolerant and have some of the most beautiful flowers imaginable. It may be because most of them only bloom for a couple weeks of the year. Even the reblooming ones only have flowers for a few weeks sporatically. So many people in our area want plants that bloom every day of the year. To me that would be like eating the exact same thing every day. Why not have an ice cream sundae once in a while for a treat? That is what iris are to me in my garden. A bit of an indulgence that makes life interesting.