Polygonum perfoliatum (mile-a-minute vine) is a highly invasive weed that was first discovered in Connecticut in 2000 and in Massachusetts in 2006. The plant is an annual in the northeast.
Univ. of Mass. extension floriculture specialist Tina Smith said a single vine can grow up to 6 inches per day. The plant climbs over trees, fences and other structures and shades out other plants. It outcompetes and overgrows native species, causing ecological and economic damage. It also produces many seeds which are dispersed by birds, animals, water, in potted plants, etc.
Growers can minimize the spread of this plant by practicing good weed control in potted perennials, outdoor growing yards and around greenhouses. Mowing, cutting or hand removal can be used to manage this weed. Large infestations can be treated with a glyphosate-based herbicide.
Pictured: Mile-a-minute plant (Polygonum perfoliatum)
Photo courtesy of the Plant Conservation Alliance
