'Emerald Mist' is another great variegated Brunnera. Thick silver bars connect to form a silver collar around the perimeter of the leaf, and a light silver-dusting covers the entire leaf. A cloud of baby blue forget-me-not type flowers floats above the foliage in late spring. Best grown in part to full shade, where it forms a clump 12-15" tall and wide. Hardy to Zone 3.