‘Dallas Blue’ is a cultivar of Switchgrass noted for its grayed blue-green foliage, dense habit, unusually large flower panicles, late flowering and rich winter foliage color. It typically grows to 5’ tall. Grayed blue-green foliage is wider than most panicums, and foliage turns attractive shades of rust brown to warm tan in winter.
Best grown in average, medium to wet soils in full sun to part shade. Tolerates a wide range of soils, including dry ones, but prefers moist, sandy or clay soils. Tolerates occasional flooding. May flop in overly rich soils. Generally performs best in full sun. Will grow in part shade, but begins to lose its form in too much shade, growing more openly and possibly falling over. Grows primarily in clumps, but will slowly spread by slightly creeping rhizomes. Cut back clumps to the ground in late winter to early spring. Plants may self-seed in optimum growing conditions but cultivars may not come true from seed.
Height: 4′-6′ Spread: 2’-3’ Bloom: September-February Light: Full Sun-Part Shade Water: Low-High Zone: 5-9 Origin: Cultivar/Texas, much of North America
