Upcoming events

  • Native plant seed packing party

    • 11 Dec 2025
    • 6:00 PM - 7:30 PM
    • Watertown Free Public Library - Watertown Savings Bank Room
    Register

    Join WCG for a seed packing party, focused on locally-collected seeds of native plants. These plants support biodiversity and pollinators. 

    Volunteers will be provided with a container of bulk seed, measuring spoons, small envelopes and labels. Seed packets will be distributed in the community this winter.

    Registration is not required, but is appreciated to help us plan for headcount.  And you'll get a reminder email a few days before the event.

    These event is co-sponsored by the Watertown Free Public Library.  See the Library event posting here. 

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  • Mystic Charles Pollinator Pathways: Native Seed Cleaning Workshop 2

    • 13 Dec 2025
    • 1:00 PM - 4:00 PM
    • Medford Public Library

    Bring your native plant seeds to clean and share.  We will learn techniques for cleaning different kinds of native plant seeds.  If you have seeds that are already cleaned, feel free to bring them for adding to the Little Free Library.

     https://medfordlibrary.org/events/

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  • Mystic Charles Pollinator Pathways: Native Seed Packaging Workshop

    • 17 Jan 2026
    • 1:00 PM - 4:00 PM
    • Medford Public Library

    We will work together to package native plant seeds for giving away.  Feel free to bring seeds that you have already cleaned. At the end there will be plenty of seeds to take home for  winter sowing.

    https://medfordlibrary.org/events/

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  • Mystic Charles Pollinator Pathways: Winter Sowing

    • 24 Jan 2026
    • 1:00 PM - 4:00 PM
    • Medford Public Library

    Learn how to start native plant seeds over the winter in milk jugs.  You'll learn how to prepare, sow and maintain your milk jugs (which will live outside). In the spring, you will have many seedlings to plant in your own gardens, and share with others!   Bring up to 6 one gallon milk jugs.  We will have potting mix and native plant seeds. https://medfordlibrary.org/events/


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  • How to Grow Asian Vegetables in Watertown

    • 27 Jan 2026
    • 6:30 PM - 8:00 PM
    • Watertown Free Public Library, Lucia Mastrangelo Room
    Register

    The Chinese American Association of Watertown and Watertown Community Gardens has teamed up to teach you how to grow Asian vegetables in your own backyard, porch, or garden plot! 

    Come to this seminar for an overview of Asian vegetable growing in this area as well as tips & tricks distilled from interviews with local Chinese-American residents of Watertown. 

    Image of Taiwan Long Bean borrowed from rareseeds.com.

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  • Winter Seed Sowing Workshop #1 - Native plants

    • 31 Jan 2026
    • 1:00 PM - 2:30 PM
    • Watertown Free Public Library
    • 40
    Register

    Learn to grow your own plants from seed with a mini greenhouse crafted from an empty milk or water jug!

    Grow perennial flowers to support our local pollinators, birds, and biodiversity. (Best time to plant is December - February)

    This workshop will give you the tools you need to start or expand your own pollinator garden. Soil, native seeds, and one empty one-gallon jug will be provided.

    Participants under 18 are allowed, if accompanied by a parent or guardian.

    This is an in-person, hands-on, free event with instruction from Watertown Community Gardens members.

    This event is co-sponsored by the Watertown Free Public Library.  You can view the Library event posting here.  

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  • BB&N Service Learning Event

    • 4 Mar 2026
    • 2:00 PM - 4:00 PM
    • TBD

    This service learning event on the Watertown-Cambridge Greenway is open only to BB&N students and the staff accompanying the students. 

    Details:

    * Starting point will be determined with BB&N staff.

    * Please bring: drinking water, a hat, and garden gloves if you have them. Please wear long pants, socks, and closed toe/sturdy footwear. We also recommend long sleeves for protection against bugs and scratchy plants.

    * We will provide trash bags, gardening gloves and other tools.

    * All students must provide a 2026 waiver signed by a parent or guardian in advance. Staff participants will be asked to sign the 2026 adult waiver in advance or upon arrival.

    Questions? Contact the Greenway team at Watertown Community Gardens at greenway@watertowngardens.org.

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  • 3rd Annual Watertown-Cambridge Greenway Spring Cleanup

    • 14 Mar 2026
    • 10:00 AM - 12:00 PM
    • 490 Arsenal Way, Watertown, MA 02472
    Register

    Come and volunteer for some spring cleaning on the Watertown-Cambridge Greenway!

    Meets on-site at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks). From there, one crew will work westward toward the Watertown end, and the other will work eastward toward Fresh Pond in Cambridge.

    Register to get reminders and event updates (and help us ensure we have enough snacks!). Rain date is March 21st, same time, same place.

    Details:

    * Starting point is at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks).

    * We'll have coffee and bagels to start things off! 

    * We'll provide disposable gloves and trash bags. Please wear long pants, socks, and closed toe/sturdy footwear.

    * Everyone will be asked to sign a combined 2026 DCR and Watertown Community Gardens waiver. Participants under 18 must be accompanied by an adult or bring a waiver signed by a parent or guardian in advance.

    Questions? Contact Watertown Community Gardens at info@watertowngardens.org.



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  • RAIN DATE for 3rd Annual Watertown-Cambridge Greenway Spring Cleanup

    • 21 Mar 2026
    • 10:00 AM - 12:00 PM
    • 490 Arsenal Way, Watertown, MA 02472

    If we're rained out on Saturday, March 14, we'll plan to do the spring cleanup on Saturday, March 21 instead!

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    Come and volunteer for some spring cleaning on the Watertown-Cambridge Greenway!

    Meets on-site at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks). From there, one crew will work westward toward the Watertown end, and the other will work eastward toward Fresh Pond in Cambridge.

    Register to get reminders and event updates (and help us ensure we have enough snacks!). 

    Details:

    * Starting point is at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks).

    * We'll have coffee and bagels to start things off! 

    * We'll provide disposable gloves and trash bags. Please wear long pants, socks, and closed toe/sturdy footwear.

    * Everyone will be asked to sign a combined 2026 DCR and Watertown Community Gardens waiver. Participants under 18 must be accompanied by an adult or bring a waiver signed by a parent or guardian in advance.

    Questions? Contact Watertown Community Gardens at info@watertowngardens.org.



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  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 26 Mar 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 2 Apr 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on Watertown-Cambridge Greenway - Invasive Plant Removal

    • 4 Apr 2026
    • 10:00 AM - 12:00 PM
    • Greenway intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks)

    Registration for this event is not yet open. Check back in the spring of 2026!

    ----------------------------------------

    Help keep the Greenway green!

    We will be working to remove invasive plants and restore wildlife habitat on the Watertown-Cambridge Greenway. We will focus this work day on removing garlic mustard, Japanese knotweed and other invasive plant species, and caring for the Pollinator Garden established on the Greenway. Exact tasks will be defined the day of the event.

    Details:

    * Starting point is at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks).

    * Please bring: drinking water, garden gloves, and any tools (clipper/pruners/shears, trowel) if you have them. Please wear long pants, long sleeves and closed toe/sturdy footwear

    * We will provide trash bags, trowels, gardening gloves and other tools as needed for the day's activities.

    * All participants will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult, or bring a waiver signed by a parent or guardian in advance.

    Questions?

    Contact Watertown Community Gardens at info@watertowngardens.org

    Show details

  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 9 Apr 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 16 Apr 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 23 Apr 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on the W-C Greenway - Thursday Morning Crew

    • 30 Apr 2026
    • 9:00 AM - 11:00 AM
    • Holworthy Place (Cambridge) entrance to Watertown-Cambridge Greenway
    Register

    Come join our small crew, every Thursday morning, to enjoy some time outside and help this beautiful pathway stay green. 

    We will remove invasive plants (garlic mustard, Japanese knotweed, mugwort, etc.), plant and water native plants, add/repair rabbit cages, and pick up trash. We'll focus on the Greenway between the Huron Ave. bridge and Cottage St.

    Register to help us keep track of volunteer hours, bring enough tools (and snacks!), and let you know about any changes in time or location. Steady rain or downpours will cancel!

    Details:

    * Starting point is the benches at the Holworthy Place entrance to the Greenway in Cambridge (behind the Star Market on Mt. Auburn St.).

    * Please bring: drinking water, garden gloves, and any tools (clippers, trowel, garden fork) if you have them. Please wear long pants, long sleeves, and closed toe/sturdy footwear.

    * We will provide trash bags, gardening gloves and other tools as needed for the day's activities.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult.

    Show details

  • Volunteer on Watertown-Cambridge Greenway - Invasive Plant Removal

    • 2 May 2026
    • 10:00 AM - 12:00 PM
    • Greenway intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks)

    Registration for this event is not yet open. Check back in the spring of 2026!

    ----------------------------------------

    Help keep the Greenway green!

    We will be working to remove invasive plants and restore wildlife habitat on the Watertown-Cambridge Greenway. The focus for this work day will be on removing garlic mustard, Japanese knotweed and other invasive plant species, and caring for the Pollinator Garden established on the Greenway. Exact tasks will be defined the day of the event.

    Details:

    * Starting point is at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks).

    * Please bring: drinking water, garden gloves, and any tools (clipper/pruners/shears, trowel) if you have them. Please wear long pants, long sleeves and closed toe/sturdy footwear

    * We will provide trash bags, trowels, gardening gloves and other tools as needed for the day's activities.

    * All participants will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult, or bring a waiver signed by a parent or guardian in advance.

    Questions?

    Contact Watertown Community Gardens at info@watertowngardens.org

    Show details

  • Volunteer on Watertown-Cambridge Greenway - Black swallowwort pull!

    • 30 May 2026
    • 10:00 AM - 12:00 PM
    • Greenway intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks)

    Registration for this event is not yet open. Check back in the spring of 2026!

    ----------------------------------------

    Help keep the Greenway green! 

    We expect to focus this work session on pulling out Black swallowwort, an invasive plant that is a threat to monarch butterflies. 

    If the ground is soft enough, we will strive to pull out the swallowwort by the plants' roots, which will really help to keep its spread in check. Note: we've seen poison ivy in this same area... so please wear long pants AND long sleeves!

    Details:

    * Starting point is at the trail intersection between Watertown Mall and 490 Arsenal Way (with bench and bike racks).

    * Please bring: drinking water, a hat, and garden gloves if you have them. Please wear long pants, socks, closed toe/sturdy footwear - and long sleeves!

    * We will provide trash bags, pitch forks, gardening gloves and trash bags to bag up the black swallowwort.

    * If you haven't yet signed a 2025 waiver, you will be asked to sign a waiver upon arrival.

    * Any participants under 18 must be accompanied by an adult, or bring a waiver signed by a parent or guardian in advance.

    Questions? Contact Watertown Community Gardens at info@watertowngardens.org

    Show details

  • Volunteer on Watertown-Cambridge Greenway - Pollinator Garden weeding!

    • 27 Jun 2026
    • 9:00 AM - 11:00 AM
    • Pollinator Garden on the Watertown-Cambridge Greenway, near where Wheeler Court ends at the Greenway

    Registration for this event is not yet open. Check back in the spring of 2026!

    ----------------------------------------

    Are you an experienced gardener? Know the difference between the common invasive plants and many native wildflowers? Come join us at this work session dedicated to careful weeding of the Pollinator Garden on the Watertown-Cambridge Greenway.

    If we have time, we'll move on to cutting and digging out some of the invasive plants right around the Pollinator Garden, including mugwort, Japanese knotweed, buckthorn and black swallowwort.

    Register to get reminders and event updates (and help us ensure we have enough snacks!).

    Details:

    * NOTE 9 AM START TIME! We're starting earlier now that summertime heat has arrived.

    * Starting point is the Pollinator Garden on the Watertown-Cambridge Greenway, near where Wheeler Court ends at the Greenway, and roughly half-way between the bench behind the Watertown Mall and the trail intersection with Arlington St. and Nichols Ave.

    * If you're driving, there's parking nearby behind the Watertown Mall or at the end of Arsenal Way. 

    * Please bring: drinking water, garden gloves, and clippers and weeding knife if you have them. A kneeling pad or similar foam pad can be helpful. We will provide trash bags, and extra gardening gloves and other tools.

    * If you haven't yet signed a 2025 waiver, you will be asked to sign this waiver upon arrival. Any participants under 18 must be accompanied by an adult, or bring a waiver signed by a parent or guardian in advance.

    Questions? Contact Watertown Community Gardens at info@watertowngardens.org.

    Show details

  • Volunteer on Watertown-Cambridge Greenway - Invasive Plant Management

    • 25 Jul 2026
    • 9:00 AM - 11:00 AM
    • Greenway, southwest of intersection with Arlington and Nichols St (near the bench)

    Registration for this event is not yet open. Check back in the spring of 2026!

    ----------------------------------------

    Help keep the Greenway green!

    Come join neighbors and path users as we work to remove invasive plants and restore wildlife habitat on the Watertown-Cambridge Greenway.

    We expect to focus this work session on cutting a large patch of Japanese knotweed west of Arlington St.

    Register to get reminders and event updates (and help us ensure we have enough snacks!).

    Details:

    * Starting point is southwest of the intersection with Arlington and Nichols St (near the bench). See the area highlighted in yellow in this screenshot.

    * Please bring: drinking water, a hat, and garden gloves if you have them. Please wear long pants, socks, and closed toe/sturdy footwear. A kneeling pad or similar foam pad can be helpful. We also recommend long sleeves for protection against bugs and occasional poison ivy.

    * We will provide trash bags, and extra gardening gloves and other tools.

    * If you haven't yet signed a 2026 waiver, you will be asked to sign this waiver upon arrival. Any participants under 18 must be accompanied by an adult, or bring a waiver signed by a parent or guardian in advance.

    Questions? Contact Watertown Community Gardens at info@watertowngardens.org.

    Show details

To see information from previous workshops and events,
check out our Workshop Materials Resources page!


Watertown Community Gardens is a 501(c)3 non-profit organization.

P.O. Box 1041, Watertown, MA 02471

info@watertowngardens.org

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