'Lemon Meringue' forms an upright, vase-shaped mound of attractive blue-green foliage topped with long, charcoal stems which carry the lemon yellow flowers in late spring to early summer.  The contrast of dark stems with light flowers really pops in the landscape, delivering an excellent floral display.  Ornamental seed pods extend the season of interest into fall..

(Photo courtesy of Walters Gardens, Inc.)