06/11/2026
The Maryland Department of Natural Resources (DNR) completed a 71-acre planting project at Newtowne Neck State Park in St. Mary's County in April that will help prevent rain runoff from reaching the Potomac River.
The Maryland Forest Service oversaw the planting of 31,990 native seedlings across 15 fields along the park's edge. The project expanded the riparian buffer, the area of trees and vegetation near the shoreline, from 100 to 300 feet in most areas.
Newtowne Neck is a 794-acre peninsula surrounded by Breton Bay, St. Clements Bay, and the Potomac River. The park’s seven miles of waterfront make buffer protection central to safeguarding Maryland's waterways.
Riparian buffers intercept sediment and filter pollutants, including pesticides and fertilizers, before they reach the water. Tree roots stabilize banks and reduce erosion. The expanded buffer will also increase habitat and food sources for wildlife.
Staff from DNR’s Maryland Park Service and Watershed and Climate Services proposed the project after attending a training hosted by the Northern Institute of Applied Climate Science to develop a climate change adaptation plan for Newtowne Neck State Park. The primary recommendation was to increase the forested buffer around the peninsula.
The Forest Service selected tree species for the planting based on site-specific environmental and soil conditions to maximize survival rates. Species planted include: beautyberry, black cherry, black locust, blackhaw viburnum, chickasaw plum, chokeberry, dogwood, hazelnut, pawpaw, persimmon, redbud, red maple, red oak, serviceberry, tulip poplar, Virginia pine, white oak, and willow oak.
Contracted workers installed trees in rows to facilitate maintenance and mowing. Each seedling is protected with a five-foot tree shelter, which shields young trees from adverse weather, animal browsing and buck rub, trampling, and maintenance damage.
The 5 Million Trees initiative funded the project, with additional support from an Arbor Day Foundation grant.