Easily grown in average, dry to medium, well-drained soils in full sun. Tolerant of a wide range of soils including heavy clays. Does well in poor, dry, infertile soils. Tends to open up and/or flop in moist, rich soils however. May self-seed in optimum growing conditions. Cut back to the ground in late winter to early spring just before the new growth appears.
'Sioux Blue' is an Indian grass cultivar which typically grows 3-5' tall (less frequently to 6') and is noted for its narrow, upright form and metallic-blue foliage. It primarily differs from the native American species by having bluer foliage and better vertical form. It is a warm season perennial grass which typically forms upright clumps (to 2-3' tall) of slender, metallic-blue leaves (to 1/2" wide and 2' long). Foliage turns yellow in fall and usually retains hints of gold into the winter. Stiff, vertical flowering stems, topped by narrow, feathery, light brown flower panicles (to 12" long) highlighted with yellow stamens, rise well above the foliage clump in late summer to 5-6' tall. Panicles darken to bronze/chestnut brown in fall as they mature, later fading to gray. Panicles continue to provide some interest well into winter. 'Sioux Blue' was introduced into commerce by Longwood Gardens, Kennet Square, Pennsylvania.
No serious insect or disease problems.
Vertical accent for borders. Mass as a screen. Mass or blend into prairies, wild or naturalized areas.
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