Its large, striking, blue-green leaves show off white margins and light waves from tip to stem. Perks up darkened spaces with pale lavender blooms in midsummer. Try it in partly to fully shaded garden spaces, such as wooded sites, shadowy borders, or covered porches and patios. At maturity, the rounded leaves present a slight cupping and increased waviness, and the margins turn creamy yellow. Exhibits good slug resistance, too.