What is the common name for pennisetum setaceum rubrum?
Full form – pennisetum setaceum ‘rubrum’: purple fountain grass. In optimal conditions, purple fountain grass can grow 1-2 feet per month during the vegetative phase. The plants can reach heights of 3-4 feet at maturity.Fountain grass is a highly invasive grass that out-competes native vegetation. It is used as an ornamental grass in gardens and along roadsides. It is a weed of pastures, railway corridors and roads interstate.Pennisetum advena `rubrum dwarf`, commonly known as dwarf fountain grass, takes its name from the fountain-like flowers that look like jets of a water fountain. The flowers start purple and, as they mature, fade to a yellowish cream colour. It is an exotic ornamental grass that originates from south africa.Purple Fountain Grass Grass Purple Fountain is winter hardy to USDA Zones 9-10 where it is easily grown as a perennial in average, medium moisture, well-drained soils in full sun to part shade. Best performance is in full sun.