Common Name: Giant Miscanthus, Giant Silver Grass, Giant Chinese Silver Grass
Latin Name: Miscanthus x giganteus J. M. Greef & Deuter ex Hodk. & Renvoize (Syn. M. floridulus, M. japonicus)
Reviewer: James Calkins
File #: MDARA00015MISGIG_1_18_2013
Giant miscanthus (Miscanthus x giganteus) is a tall (on average 8-12 feet, but can reach heights of 13-15 feet), perennial, rhizomatous, warm-season grass (Poaceae) that is native to Japan. It is a hybrid species between Miscanthus sinensis (Chinese silver grass) and Miscanthis sacchariflorus (Amur miscanthus). It is a triploid and sterile, producing no seed; plants rarely flower in Minnesota and spreads slowly by rhizomes. Giant miscanthus has low fertility requirements, performs well on poor soils, and has spurred considerable interest in Europe and the United States as a biomass crop that can be used for energy production through direct combustion and the production of ethanol and other biofuels. Giant miscanthus also has potential as a biochar feedstock and may have the potential to play a role in carbon sequestration.
Although giant miscanthus tolerates a wide variety of soils and is relatively drought tolerant once established, it performs best on moist, fertile soils in full sun. It makes a striking statement in the landscape and is not easily lodged by wind and snow. It is hardy to USDA Cold Hardiness Zone 4.
Review Entity | Outcome
NWAC Listing Subcommittee: No Regulatory Action.
Comments: Not thought to be a threat in Minnesota at this time.
NWAC Full-group: No Regulation. Recorded to NWAC Database.