Chinese Silvergrass Seed Shows Long-term Viability

Chinese silvergrass ( Miscanthus sinensis ) is native to East Asia and South Africa has been grown as an ornamental in the United States for over 100 years. on invasive species list 12 states regulated sale New York state. It often found along roadsides middle-Atlantic Long Island, NY. In 2019 2020, we sowed chinese seed harvested Fall 2002 Spring 2003 from several locations North Carolina where it had naturalized Minnesota Landscape Arboretum, Chaska, MN. The stored a storage vault (4 °C) 2020. Germination showed variation between 53% 95% 19 different individual plants. This same when resown 2020 much lower germination that could be divided into three categories: no (five plants), of 1% or less (seven more than 2% plants). Results this study show viability may long-term problem naturalized.