Invasive Plants or Trees

Native ecosystems in our woodlands are under increasing pressure from invasive plant species and from both native and invasive vines. Providers of invasive plant and vine control are listed here.

This directory is developed by the Woods in Your Backyard Partnership and the University of Maryland Extension's Woodland Stewardship Education program. This directory serves as a way to connect land owners and managers to green industry services providers. The directory has been organized by service and alphabetically. Click or tap on the icons below to access the listings.

Since its debut as a regular Branching Out feature in 2016, "Invasives in Your Woodland" has profiled a wide variety of invasive plant species that threated the health of Maryland's ecosystems.

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.

Japanese honeysuckle grows in a variety of habitats, including woodlands, wetlands, and disturbed areas, such as fence rows, roadways and rights-of-way. It is shade-tolerant and often smothers and kills native ground-level vegetation. It can also kill shrubs and saplings by girdling.

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.

Autumn olive is now considered an invasive plant species for a variety of reasons. While it is not illegal to sell the plant in every jurisdiction where it exists, many natural resources management agencies and organizations discourage property owners from further planting.