It is understandable that this website has lots of long and detailed reports from fermyn and knepp, but these places are certainly not representative for the vast majority of iris habitats.
Here, in the Upper Thames region, so far, it is either a poor season, or a late season, or a poor and late season.
Just 73 sightings over this period in 43 visits by lots of people to 14 localities. For previous years, the average sightings/visit has been between 2 and 3, so, so far, we are well below average.
Lookng at previous years, we have had two late seasons: 2012 and 2013. In 2012, it started on 4th July and peaked from 22nd to 28th July; in 2013 it started on 8th July, with a long peak between the 10th and the 26th. So, hopefully, it is a late season and things will get better.