it is an iris. bearded iris.

Could be Blue Staccato

There are so many it could be hard to tell without buying a named one just like it and growing side by side.
You could search the database to narrow it down.

This post was edited by pdsavage on Thu, Jul 31, 14 at 7:47

In any case, it's a very lovely and interesting bloom.

yes dbarron you are right so i want to buy this one.

so need name of this flower.

It is a Plicata that is the color pattern. google tall bearded Iris blue plicata. Might help you find a name

OK,thank you for your help. I will try to find it. If any one knows the perfect name, then let me know.

Look on Jung Seeds and Park Seeds websites. I have seen this iris at one of those.

It's really helpful for me.
Thank you Mscook

Did you miss pdsavage's post? The 2nd one. Her/his suggestion is very likely.