Lewis blue flax is a graceful, airy perennial with slender stems and sky-blue, five-petaled flowers that open fresh each morning and drop their petals by afternoon – though the plant keeps blooming steadily through summer. Growing in dry, sunny sites, it’s drought tolerant once established and moves beautifully in the wind. Its abundant flowers are visited by bees, making it a lovely, low-maintenance addition to a dry meadow or naturalized border.