Jug Bay Wetlands Sanctuary

1361 Wrighton Road
Lothian, MD 20711

Jug Bay Glendening Nature Preserve Herbicide Treatment

The Glendening Nature Preserve (GNP) will undergo a second herbicide treatment to enhance its meadows. The application window starts on Monday, September 29, but is weather-dependent, so the exact date is to be confirmed. We will update this announcement when the date is finalized.

On the day of the spraying, the Plummer entrance and restrooms will be CLOSED. Additionally, portions of the trails leading to Plummer House will also be CLOSED for the entire day. Please refer to the map for more details. For further information regarding the spraying, Please consult this document. 


  • Wednesday, Friday, Saturday, Sunday (Closed Sundays Dec-Feb)
  • $6 per vehicle

Glendening Nature Preserve 
5702 Plummer Lane, Lothian, MD 20711 
Open 9:00am – 5:00pm, daily 
Nature Preserve at Waysons Corner 
5481 Southern Maryland Blvd, Lothian, MD 20711 
Open dawn – dusk, daily 
Patuxent Wetland Park 
1426 Mt. Zion Marlboro Rd, Lothian, MD 20711 
Open dawn – dusk, daily 
Wootons Landing Park 
4550 Sands Rd, Harwood, MD 20776 
Open dawn – dusk, daily

Jug Bay Wetlands Sanctuary

Jug Bay Wetlands Sanctuary is located within the tidal reaches of the Patuxent River, in southern Anne Arundel County.