Plant Catalog › Panicum virgatum 'Thundercloud' Panicum virgatum 'Thundercloud' $0.00 Common Name: SwitchgrassH: 7-8' W: 2-3'Color: Blue Shades, Green Shades Add To Cart Added! Common Name: SwitchgrassH: 7-8' W: 2-3'Color: Blue Shades, Green Shades