Invasive Herbaceous Plants

Japanese knotweed is an upright, shrubby, herbaceous perennial plant that can grow to over ten feet in height. It commonly invades disturbed areas with full or mostly full sunlight, such as roadsides. However, it can tolerate shade, as well as high temperatures, high salinity, and drought.

Kudzu is a deciduous, climbing, semi-woody perennial vine that grows 35 to 100 feet long. It grows via runners, rhizomes, and from nearly every node that touches the ground. It spreads most rapidly in open areas, including disturbed areas such as abandoned fields, roadsides, and forest edges.

Garlic mustard is a biennial flowering plant in the mustard family that is an aggressive invader of woodlands throughout the United States.

Multiflora rose is one of the most common invasive plants in the mid-Atlantic region. Read how to identify it, how to keep it from spreading, and how to keep it in check.

Wavyleaf basketgrass was first identified in the United States in Baltimore County, MD in 1996. It is less well-known than other invasives, but it is spreading rapidly in Maryland and Virginia.

How to Transition an Area from Invasive to Native Plants

How to identify and manage invasive garlic mustard.

How to identify and manage invasive mile-a-minute vine.

How to identify and manage wavyleaf basketgrass using an Integrated Pest Management approach.

How to manage herbaceous invasive plants.