‘Cape Cod Boys’ Siberian Iris has showy periwinkle blue flowers in late spring and early summer. The ruffled petals have dark blue veins, adding contrast to the lighter blue, and centers of the flowers are a bright yellow. Siberian Irises bloom after German Irises and before Japanese Irises, making the Iris season in the garden extensive. Iris ‘Cape Cod Boys’ tolerates a wide range of soil conditions and moistures. The name ‘Cape Cod Boys’ is to make us think of the summer ocean color.