Johnsongrass is a grass of the sorghum family. It is native to the Mediterranean region, but grows throughout Europe and the Middle East, and was introduced to the United States about 1830. It can now be found in every state except Minnesota, Maine, and Alaska. It reproduces by rhizomes and seeds.
Johnsongrass has been used for forage and to stop erosion, but it is often considered a weed.
The Kiowa used Johnson grass as fodder for horses, and Kiowa children used the stems and leaves to make grass whistles.
PLEASE NOTE -The proper use and application of herbicides can be an effective way to control and eradicate noxious and invasive plants. Before using herbicides, always carefully follow the label and safety instructions on the label. While we recommend the use of herbicides as one of the effective tools for integrated pest management, the Idaho Weed Awareness Campaign assumes no liability for herbicide applications.
For more information, click on the link below to download the Idaho's Noxious Weeds Control Guidelines publication produced by the University of Idaho Extension.
U of I Idaho's Noxious Weeds Control Guidelines (183 KB PDF download)