High Country Gardens is a fan of ‘Dallas Blues’ switchgrass, stating, “Panicum virgatum ‘Dallas Blues’ is among the finest of our native ornamental grasses.” And Plants Delights calls it “among the most stunning forms ever selected.”
This vase-shaped blue-hued grass has wide leaves and airy purplish plumes. Over 5 feet in height and upright, it remains standing through winter snow. It looks great planted in groups, as a specimen plant and even in large containers.
Botanical name: Panicum virgatum ‘Dallas Blues’
Common name: ‘Dallas Blues’ switchgrass
Foliage: Blue with airy purplish plumes
Height: 4–6 feet
Spread: 2–3 feet
Sun requirements: Full sun
USDA Hardiness Zones: 4–9
Plant this native warm-season grass in the full sun in clay, sandy or average soil. Once established, this grass tolerates drought. Growing it in leaner soil and on the dry side enhances its color.