Forest Health

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.

In our Winter 2019 issue, read our "Woodland Wildlife Spotlight," the "Invasives in Your Woodland" feature, what the 2018 Farm Bill offers for woodland property owners, and how a native fungus that may help control tree-of-heaven.

Japanese barberry tolerates shade, resists drought, and deer don’t eat it. While this sounds like a perfect combination for ornamental planting, because deer do not browse it, it can outcompete native shrubs. It spreads rapidly through woodlands, open fields, and wetlands.

Eurasian bush honeysuckles are non-native species that can out-compete many native plant species. They are found throughout Maryland and the mid-Atlantic states, where these multi-stemmed plants spread rapidly in disturbed areas, forming dense thickets that can reach ten to fifteen feet in height.

English ivy can be found in many areas throughout Maryland and the nation. You can see it in both woodlands and urban areas alike. This climbing vine is a highly aggressive invader that threatens all levels of forested and open area.

Golden bamboo, also known as fishpole bamboo or running bamboo, is an invasive plant that was introduced to North America over a century ago and is still offered for sale as a fast-growing ornamental plant.

Japanese stiltgrass has successful invasive has colonized a variety of habitats throughout the eastern half of the United States, including every county in Maryland, and reaching as far west as Texas.

The Woodland Health Assessment consists of a checklist and a series of management actions. Property owners can use them to identify potential areas for management, based on their particular objectives.

As summer yields to fall, deciduous trees throughout the mid-Atlantic states lose their leaves in an often-spectacular display of color. However, not all hardwood trees participate in this pageantry, and decide to hang onto their leaves until spring. This is called "marcescence." Why it occurs is another question.

As I am about to retire after 32 years as a University of Maryland extension forester, I want to take this opportunity to share some thoughts with you, the readers of Branching Out, and others who have benefited from the Woodland Stewardship Education program.