Caesars Brother Siberian Iris.
The Caesar's Brother Iris (Iris sibirica 'Caesar's Brother') is a fantastic clumping perennial with tall sword-like bluish-green foliage that supports rich, deep intense blue flowers with splashes of yellow on the lower petals. Caesar's Brother is one of the most easily grown Iris, blooming from late spring into summer.
The clumping upright form and texture and the clumps will grow together and snuff out most weeds. They make magnificent cut flowers as the violet-blue... - Caesars Brother Siberian Iris.