I believe this one is called "Blue Staccato", being a musician this appealed to me
many years ago when we added a heap of the bearded iris to the garden. They
multiplied like wildfire and we ended up lining a big section of the rose garden
with these iris. Unfortunately that means lifting them about every 4 years, which
we failed to do hence not so many of them flower as they did when we first
planted them. This year we have had an over supply of rain which these iris seem
to have relished, and they're now performing the best they have for many years!