General Culture:
Easily grown in average or sandy, medium moisture, well-drained, soils in full sun to part shade. Prefers slightly alkaline soils in full sun. Does well in poor, infertile soils where it usually grows in a more compact form. Freely self-seeds in optimum growing conditions to the point of being weedy. Promptly remove (shear if large planting) spent flower stems to encourage additional bloom and to prevent seeds from forming. Plants are generally less vigorous in the hot and humid summers of the deep South than in cooler summer climates.
Noteworthy Characteristics:
Valerian is a well-branched, bushy, clump-forming, woody-based perennial which is valued for its ability to produce a showy bloom in poor soils from spring to frost. Late summer to fall bloom can be quite sporadic, however. 'Albus' is a white-flowered form of the popular red valerian (see B950). Small, star-shaped, white flowers appear in dense terminal clusters (cymes) atop upright to relaxed stems rising above the foliage to 3' tall. Flowers are fragrant. If not deadheaded, flowers give way to dandelion-like seed heads which are disbursed around the landscape by wind. Fleshy, gray-green, oval to lance-shaped leaves to 4" long.
Problems: Click for detailed list of pests and problems.
No serious insect or disease problems. Mealy bugs and aphids are occasional visitors. Aggressive spread can be troublesome.
Uses:
Cottage gardens. Naturalized areas. Stone walls. Slope or bank cover to help combat erosion. Borders, particularly as specimens or in small groups where planting can be more easily managed. Mixes well with red valerian.
© Missouri Botanical
Garden, 2001-2010