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Baltimore City Weed Warriors is a city-wide program developed to maintain the health of Baltimore’s urban forest. Certified Weed Warriors are environmental stewards trained in non-native invasive (NNI) plant management for enhancing native ecosystems; they participate in citizen science and 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 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!

SPRING '24 IN-Person sessions Full
Register now for the waitlist or fall '24 priority

Weed Warriors 101

Invasive Plants in Urban Ecosystems
Wednesday, May 1, 2024
6:00 - 8:30 pm
Virtual Learning

Weed Warriors 102

Species ID & Removal Techniques
Saturday, May 11, 2024
In-Person Location:
Ben Cardin Pavilion
4700 N. Franklintown Rd.
Gwynns Falls Leakin Park

Weed Warriors 201a

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Project Planning & Leadership
Wednesday, May 15, 2024
7:00 - 8:30 pm
Virtual Learning

Weed Warriors 201b

Project Planning & Leadership +
Saturday, June 1, 2024
In-Person Location: 
Carrie Murray Nature Center
1901 Ridgetop Rd.
Gwynns Falls Leakin Park


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

Attention Newly Certified Weed Warriors: 


Submit this form after completing all WW trainings and attending your final WW event for certification

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