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What FOSC does

Friends of Sligo Creek (FOSC) offers events year round in support and appreciation of Sligo Creek and adjacent parkland. Litter clean-up and invasive plant clear-out events are among the most popular FOSC activities in the spring, summer and fall. FOSC also sponsors guided outdoor explorations of different aspects of Sligo Creek flora and fauna. A wide variety of other programs throughout the year educate neighbors and users of the park about Sligo Creek’s strengths and challenges. FOSC also monitors the creek, advocating for civic policies that will support a healthier Sligo.

FOSC invites you to visit the creek, volunteer at an upcoming event, attend a program, advocate for the Creek, and join FOSC.

Takoma Park Folk Festival – Volunteers needed!

Sunday, Sept. 8th from 9:30am – 5:30pm

Join us at the Takoma Park Folk Festival Festival. Enjoy great music while helping out at the FOSC table. The Folk Festival is at Takoma Middle School on Piney Branch Rd.

We need volunteers for 2 hr. shifts throughout the day. You’ll be with an experienced FOSC buddy and you are welcome to bring a friend with you!

Many thanks.

Sign Up!

Green Streets and Garden Tour in Sligo Park Hills

Thursday, Sept. 19 from 6:30 – 7:30pm

See a fascinating selection of the different kinds of green projects the county put in to capture stormwater from Sligo Park Hills streets, and a native plant ’specimen garden’ – that means many different kinds of native plants in sun and shade. See what works where. Part of a Nature Forward partner grant.


Contact [email protected] for the meet-up address. The area is hilly, so wear walking shoes. Any questions, email Kit at the email address above.

FOSC at MOM’s Organic Market Grand Opening

Friday, Sept. 20, Saturday Sept. 21 and Sunday Sept. 22

FOSC has been invited to be a part of the grand opening of My Organic Market (MOM’s) on Georgia Ave at Spring Street in DTSS. We will be one of three non-profits splitting 5% of the proceeds from the opening weekend.

If you can join us at the FOSC table for a few minutes, we’d greatly appreciate your help! We’ll be there at the following times:

Fri. Sept. 20: 1:30pm – 6:00pm
Sat. Sept. 21: 10:30am – 6:00pm
Sun. Sept. 22:
9:00am – 1:00pm

News & Updates

The Sligo Garden Program is Sold Out!

The Sligo Garden Program 2024 has sold out of both the garden kits and the design consultations. Every native plant counts for pollinators, and every sq ft of permeable conservation landscape helps absorb rainwater and reduce the stormwater entering the creek. You are adding resilience to our local ecology. Thank you to all who have participated in this program. We hope to obtain further grant funding to bring back this popular program.

Want to know what it was all about? Check out the Sligo Garden Program page under the Stormwater tab above.

President’s Day Sweeps pulled a huge amount of litter from Sligo

Mini-sweeps at 3 trash hot spots yielded an impressive amount of trash from the creeks over the President's Day weekend. Altogether, 101 volunteers hauled 118 bags of trash, [...]

Faring well? Sligo and Long Branch in a warming climate

Faring well? Sligo and Long Branch in a warming climate How healthy are Sligo, Long Branch and NW Branch? The Water Quality Committee of FOSC invites you [...]

Join FOSC

FOSC logo

Sligo Creek connects us. Please join FOSC and help protect and restore the Creek for everyone in our community. It’s simple to do and can be free if you wish. Membership gives you early notice of events and the FOSC newsletter.

You can make a donation too, either online (simple and secure) or by check to FOSC, P.O. Box 11572, Takoma Park, MD 20913. Thank you!

FOSC Action Hub

Sligo Creek Water WatchDog mascot

Report water pollution ASAP!
Send an email to:
[email protected]

You play an important role protecting Sligo. Please report any pollution you see in the creek or heading into a storm drain ASAP, with photos, which help County investigators find and fine the pollutors.

A lone duck swimming in polluted water in between sewer pipes crossing the stream.

A lone duck swims in polluted water between sewer pipes crossing Brashears run near Maple Ave. in March 2024. (Sally Taber photo)

Summer 2024 Top Invasives

 Invasive: Italian Arum

Italian Arum is back in force around Sligo Creek and Long Branch. One of the EDRR (Early Detection, Rapid Response) invasive species, it has many little “daughter” corms attached to its main corm which makes it difficult to remove completely. Dig it out carefully. Screen the loosened soil for small “daughter” corms. There is some evidence that spraying with glyphosate is effective at killing all its corms.

FOSC Videos

See many more on the FOSC Youtube Channel

 FOSC on iNaturalist

Pine Siskins at Wheaton Branch Ponds by Stephen Davies

Heard about FOSC on iNaturalist.org but uncertain how to navigate the site or contribute your own observations? Expert birder and iNaturalist… Read more

FOSC on YouTube

Support FOSC

Donate to Friends of Sligo Creek

FOSC on Facebook

Get Involved

  • Participate in your community
  • Meet your neighbors
  • Improve your surroundings
  • Enhance your skill set
  • Advocate for the Creek
  • Arrange a group activity for your club or group
  • Receive the monthly eNewsletter
  • Get early notice of events and special opportunities
  • Have your name forwarded to your Section Steward for hands-on events
  • Contribute to special projects
  • Fund outdoor events, expert talks, equipment for invasive plant/litter removal, the kiosks in the park, water quality testing, and more
  • Support FOSC’s outreach to schools, civic groups, and all communities
  • Tell us about your experience at a FOSC event
  • Suggest an activity
  • Voice your concern about an environmental issue
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