By Scout Nelson
Stiltgrass is an invasive annual plant that has recently been added to the Minnesota Noxious Weed list as a Prohibited Eradicate species. This means that all parts of the plant must be destroyed, and its transport or sale is not allowed. Early detection and proper control are important to protect natural ecosystems.
This plant grows quickly and forms dense mats that can reach one to three feet in height. After the growing season ends, it dries and creates thick layers of thatch. Stiltgrass has narrow leaves that are small and feature a shiny silver line running through the center. Its stems are smooth and may appear light green or reddish purple. The lower stem sometimes grows above the ground on root like structures known as stilts.
Stiltgrass prefers moist and partially shaded areas such as forest edges wetlands and disturbed lands. However it can also grow in both full sunlight and deep shade making it highly adaptable. It spreads only through seeds and each plant can produce up to one thousand seeds in a single year. These seeds can easily stick to shoes vehicles and tools allowing the plant to spread to new areas quickly.
Managing stiltgrass requires timely action. Small patches can be removed by hand since the roots are shallow. Cutting the plant at ground level using tools can also prevent regrowth. However mowing is not very effective because the plant may grow again from remaining stem parts.
The best time for removal is between June and before late August. This timing helps prevent new germination and seed production. Certain herbicides used for crabgrass control can also work against stiltgrass. For proper guidance expert advice is recommended. Reporting sightings is important to stop its spread and protect local biodiversity.
Photo Credit: gettyimages-zoomtravels
Categories: Minnesota, General