The Greater Omaha Iris Society has announced the Cancellation of their Iris Show (which was to have been May 11th) on their Facebook page.  Do look for them May 17 – 19, 2013 at the Spring Into Spring Festival at Lauritzen Gardens.  From their website:

May 17 – 19, 2013 /  Spring Into Spring Festival at Lauritzen Gardens.  Lots of treasures are available at a reasonable price. This is a great plant sale that benefits GOIS as well as the Lauritzen Gardens.  This is a great opportunity to talk about your wonderful iris and maybe even find new ones!We will sell potted iris during this event.  Many iris will be on exhibit that may be pre-ordered for delivery at the GOIS annual iris sale in July.  (July 26 (Friday, 3:00 PM – 8:00 PM) and July 27 (Saturday, 9:00 AM to 12:00 PM), 2013)