I acquired 8 fans of Prairie Blue Eyes in April 2016. These fans were potted up together and will be transplanted this Fall into a raised bed. It did not bloom for me this year (2016). It is now 5 fans and a new smaller emerging fan. So down to 6 fans now.
The leaves are thin and it makes a small, compact clump in a pot. I hope to see some blooms next year (2017).