Chelmsford Open Space Stewardship
Since 2005, the Chelmsford Open Space Stewardship, an independent group of resident volunteers, has maintained the town’s open space and community gardens, and hosted free community events to build a sense of community and stewardship.
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The Latest from COSS

Diversity is Important. Native Plants are the Best
Whatever is decided for the Koulas Farm entrance garden, the Town will be the one to decide, as it should be. There are volunteers ready to help when the time comes. The more I look at native plantings, the more I like the look, and they are better for bees and other...

Koulas Farm detailed work plan for Jan 17th 2026.
Phase 1 Work Party Plan Koulas Farm roadside boulder and entrance tree line Saturday, 8:30 am to noon Crew size: 5 to 8 No herbicide. All invasive mitigation by hand. Purpose of Phase 1 Clear debris, vines, and dead wood so the historic daffodil plantings and the...

Accessibility statement for chelmsfordoss.org
Chelmsford Open Space Stewardship Inc. (COSS) is committed to making our website accessible to the widest possible audience, including people with disabilities. We want everyone to be able to access information about Chelmsford’s open spaces, trails, volunteer...
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COSS supports individuals, community groups, and organizations through outdoor projects, educational efforts, and service initiatives. Our work includes assisting Scouts and nonprofits, helping local farmers, maintaining trails and gardens, building accessible infrastructure, and repurposing donated tools for public use.
Scouting
The Chelmsford Open Space Stewardship actively works with Scouting America. Since 2005 we have helped Scouts with over 20 Eagle projects and numerous camp-outs and educational nature walks.
Land Trusts and Conservation
The Chelmsford Open Space Stewardship works with Land Trusts and Conservation groups in Chelmsford and surrounding towns to preserve, improve, and protect the Open Spaces.
Local Farming
The Chelmsford Open Space Stewardship has supported local farmers and community growers helping to set up full hoop style green houses and individual growers' raised garden beds.
Wildlife Preservation
As stewards of open spaces, we aim to protect many locations for use by humans and wildlife - both flora and fauna. We aim to preserve native plants (especially pollinators) and make spaces that will attract wildlife. We support initiatives like the Newhouse Wildlife Rescue and provide native pollinator plants to those who would like to use them.
See videos from our events
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Every time you think of a city, you have to think green, green, green. Every time you see concrete jungle, you must find open spaces. And when you find open spaces, make it so people can get to them.


