The large flowers have soft, open standards of the palest blue above wide, wavy falls in the same shade but heavily fretted with a deep, near navy, blue. The richness and texture of these flowers, plus the strong 32in stems on which they are carried, earn this variety a prominent place in the perennial border.
Iris breeders are dramatically changing the range of colors, heights, and bloom times available in this group. Siberian Iris often begin to flower in late May, but the peak of bloom here is in the first half of June. Their thick roots drive down deeply, which makes them drought resistant (though they also thrive in damp soil) and great plants for holding steep banks in place. Each clump becomes huge, and when a group of them grows together, weeds can't grow in between. After bloom, the grassy leaves stand erect and green through the growing season. Siberian Iris struggle in the desert Southwest.