Iris tenax lime the flowers are huge by

the flowers are huge by comparison

a woodland or front of a shady border

and only a couple spare

Looking closely (or at the next image) you can see the larger phlox in white laid on top

Flower heads:  Close up Stan Shebs

Iris tenax lime the flowers are huge bySlow spreading evergreen, very attractive flowers and easy growing. Toughleaf Iris is a slowly spreading rhizomatous evergreen perennial forming large, attractive clumps of tough, grass like leaves. Purple and white but variations in color. Very handsome and undemanding, Great for rockeries, along the edge of gravel paths, or the front of the border, meadows. Drought tolerant once established. 40cm