An ornamental perennial known for its striking, variegated foliage and pale blue flowers. It features mounding, fern-like leaves with green centers and creamy white edges, which can take on a pinkish hue in cooler weather. The plant produces clusters of lightly-scented, sky-blue, star-shaped flowers with pinkish buds in late spring to early summer, and it attracts butterflies. It thrives in part shade to full shade in moist, well-drained, rich soil.