It's always good to show [tell] what Zone UR in. Dude go ahead and plant 'em - whatUgot2lose. They may very well bloom -if they're healthy, get watered reg. & have lottsa sun.

I have read of people in zones 6 and lower planting Dutch iris in spring since they are not reliably hardy in those zones. Here in zone 9 they're planted in the fall. So it depends upon your zone. I'd love to know how they do for people who have to use spring planting. Good luck.