Panicum virgatum, commonly known as switchgrass, is a perennial, deciduous grass native to the prairies of North America. In gardens, it’s particularly valued for the upright foliage, masses of hazy flowers in early autumn followed by gorgeous autumn colour.
Panicum virgatum ‘Heavy Metal’ is an attractive cultivar with glaucous, blue-green foliage topped with pink-green flowers in early autumn. It looks fabulous planted in bold clumps that can sway in the breeze. Later in autumn, the foliage turns a lovely golden-yellow colour.