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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We Have the Power to Impact Our Future, and We're Doing Something About It
The Latest from COSS

Is there a Vernal Pool at the Bog?
While reviewing maps as I started to think about putting together a walk to all the water control points at the bog, I came across this spot again. It reminded me of something I had been meaning to take a closer look at, but like numerous things, it kept getting...

Fire Blight in Apple Trees
Well before I head off for school today, I found myself out in the yard doing some tree work. Funny how that goes; you start trimming a branch and the mind starts drifting. This morning it went all the way back to 2013 and the year we almost lost all the apple trees...

May Fair at Bartlett Park 5/9/26
The fair at Bartlett Park was a lot of fun today. John Ray and I spoke with plenty of people, and the feedback was really helpful. One thing that stood out right away is that people are enjoying the longer posts and the local information. A few said they did not even...
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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.


