Mile-a-minute weed detected in Michigan -- what to know about the invasive vine

An invasive vine known as mile-a-minute weed has been confirmed in Jackson County, Michigan. This plant is a significant threat to local ecology because of its aggressive growth rate and ability to smother trees and native vegetation. Experts note it can grow up to 25 feet in just six to eight weeks.

The weed was identified by state authorities after a local report was filed through the Midwest Invasive Species Information Network. This specific site is located only a few miles from a previously documented infestation at the Whitehouse Nature Center in Calhoun County, which is where it was first spotted in the state back in 2020.

Identifying this plant is key to containment. It features equilateral triangle-shaped leaves, delicate stems, and small blue berries that appear in July. It relies on recurved barbs on its stems to climb over existing plants. Because the seeds can remain in the soil for up to six years, monitoring is necessary for any area where the weed is removed.

If you believe you have spotted this plant on your property, take a clear photo and document the exact location. You can report your findings directly to the state using the Midwest Invasive Species Information Network online tool or by using their dedicated smartphone app. Quick reporting is the primary way to manage the spread of this invasive species.