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Baltimore City Weed Warriors is a city-wide program that was developed to maintain the health of Baltimore’s urban forest. Certified Weed Warriors are environmental stewards trained in non-native invasive (NNI) plant management and enhancing native ecosystems; they host stewardship events in parks all around the city to help protect natural areas, people, and biodiversity.

Certified Weed Warriors are volunteers and advocates permitted to work in City Parks and remove NNI plants without the supervision of park employees. To become certified, volunteers must complete a [free] 4-part class series and participate in one group NNI plant removal event. The class curriculum includes: NNI plant identification (e.g. English Ivy, Porcelainberry, Kudzu, & more), NNI impacts on Baltimore’s urban ecosystem, removal methods, and leadership training.

After completing all requirements, participants become Certified Weed Warriors and receive: a certification card, Weed Warriors t-shirt, NNI plant identification guide, and curriculum resources. The training is free and open to any individual interested in learning more about the importance of nature and biodiversity in Baltimore City.

Support your community and natural areas by joining the Baltimore Weed Warriors!


Weed Warriors 101

Invasive Plants in Urban Ecosystems
Wednesday, April 26, 2023
6:00 - 8:30 pm
Virtual Learning

Weed Warriors 102

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Species ID & Removal Techniques
Saturday, May 6, 
Location TBD

Weed Warriors 201a

Project Planning & Leadership
Wednesday May 10 ,2023
7:00 - 8:30 pm
Virtual Learning

Weed Warriors 201b

Project Planning & Leadership +
Saturday, May 20, 2023
Location TBD


Click below to view & register for upcoming Weed Warrior volunteer opportunities

request support

Looking for Certified Weed Warriors or have a project in mind?

Let us know >


Certified Weed Warriors, please update us on your efforts regularly!

English Ivy removal tutorial

Help the City curtail the impacts of English Ivy, by addressing it on your private property.

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