Baltimore City Weed Warriors is a city-wide program that helps keep Baltimore’s urban forests healthy. Anyone can join a Weed Warrior volunteer event, no training needed!

 

For people who want to do more, we also offer free trainings and certifications. Certified Weed Warriors are trained volunteers who help remove harmful invasive plants to protect native plants and wildlife. They can work in parks across the city, take part in citizen science, and lead stewardship events without needing a park staff member present.

 

As of 2025, the Weed Warriors certification program has a new structure! To become certified in Pathway 1 (vine management), volunteers complete a two-part class and participate in one group invasive plant removal event. The classes cover:

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• How invasive plants affect Baltimore’s environment

• How to identify invasive vines like English ivy, porcelainberry, round bittersweet, and Japanese honeysuckle

• Safe and effective removal methods

• Basic leadership skills

 

Stewards can continue their Weed Warriors training by attending two more classes on urban ecology and plant identification to earn a Pathway 2 certification — allowing them to work with a wider variety of invasive plant species.

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Certified Weed Warriors receive:

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• Permission to work on public parkland

• A certification card

• A long-sleeved Weed Warriors t-shirt

• An invasive plant identification guide

• Ongoing support from the Weed Warriors leadership team

 

The trainings are open to anyone who want to learn more about nature and biodiversity in Baltimore City. Help your community and protect Baltimore’s natural areas! Join the Weed Warriors network today!

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Explore upcoming trainings and events below.