Armoracia rusticana 'Variegata' (Common horseradish, Red cole)

There is seldom seen a more graceful shade plant than variegated Solomon’s seal. Narrow, pure white streaks are artfully painted along the margins of the leaves, which appear on arched burgundy stems. This plant has three-season appeal, with striking foliage in the spring; fragrant, bell-like white blooms in May and June; and a brilliant golden hue in fall. This plant forms large colonies of long, arching, 2- to 3-foot-tall stems of soft green leaves edged in creamy white. From late spring to early summer, this species bears white flowers that mature into spherical black fruit in autumn, when the foliage turns yellow. 

Wide and distinct umbrella-like leaves form beautiful clumps in a woodland setting. The small white flowers, which persist throughout the season, transform into striking umbels of blue-black berries on cerise stalks.

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From late spring to early summer, this species bears pendent, green-tipped white flowers along arching stems. These mature into spherical black fruit in autumn, when the foliage turns yellow.

Serbian bellflowers have an easy, undemanding habit. Creating a stream of lavender blue, the 1-inch-diameter star-shaped blossoms bloom reliably from late spring to early fall. The foliage remains evergreen in mild winters and needs to be sheared only once in a while to keep its appearance tidy. 'Blue Waterfall' flows beautifully along bed edges and through rock gardens in full sun to partial shade.