General Culture:
Easily grown in average, medium, well-drained soil in full sun. Somewhat intolerant of the heat and humidity of the deep South. Remove spent flowers to encourage rebloom in early autumn. May self-seed under optimum conditions.
Noteworthy Characteristics:
Knautia is an upright, clump-forming, somewhat short-lived perennial which typically grows 1.5-2' tall. Features deep purplish-red, domed, scabiosa-like flower heads (to 1.5" across) atop slender, branching stems. Deep green leaves are lightly lobed at the base of the plant, but deeply divided higher up. Long early summer to fall bloom period. Good fresh cut or dried flower.
Problems:
No serious insect or disease problems. Plants may decline considerably by late summer in hot southern climates.
Uses:
Mass in borders, cottage gardens, meadows or naturalized areas.
© Missouri Botanical
Garden, 2001-2009