Weed Warrior event – Mid Sligo north of Forest Glen Rd.
Saturday, Oct 31 from 9:00am -11:00am
Join Weed Warrior Supervisors Greg and Kathryn for a non-native, invasive plant removal workday in Sligo Creek between Forest Glen Rd and University Blvd in Silver Spring. You do not need to be certified to participate, but you do need to register! Registrants will get the details and meet up location.
Weed Warrior event – lower Sligo in Takoma Park
Wednesday, Nov. 4 from 9:00am – 10:30am
Meet at the Maple Ave bridge over Sligo Creek trail in Takoma Park.
We will continue to tackle English Ivy, Wintercreeper, Porcelainberry, and Bush Honeysuckle. If you are not a Certified Weed Warrior yet, please RSVP to me at: Elmsky(at)proton(dot)me as I’ll need to limit uncertified volunteers to 10 people. See details on the Calendar page.
FOSC Listservs on
Friends of Sligo Creek – Main Listserv
FOSC Advocacy Listserv
FOSC-Stewards Listserv (for Section Stewards only)
FOSC-WeedWarriors Listserv (for Weed Warriors only)
News & Updates
FOSC Weed Warriors Remove Invasive Plants at Colt Terrace Park at the Sligo Headwaters
In anticipation of MoCo Parks’ extensive trail restoration project
at the Sligo headwaters in Wheaton, FOSC Weed Warriors have been out tackling invasive plants in an environmentally sensitive wetland area near the existing trail. (See photo of Weed Warriors surveying wavy leaf basket grass encroaching into the wetland, at right.) The replacement trail will be rerouted away from the wetland and mature upland forest in order to restore this habitat, while bringing the trail up to current standards.
Clean up at Indian Spring Terrace Local Park
More than 30 volunteers cleaned up the entire length of this long narrow park on Sunday, March 8. They wrestled a sofa, mattress, various chairs, fencing, many bags of plastic and glass bottles, cans, fencing, and a plastic castle playset – good for many years if not decades or more of decomposing plastic. After removing well over 1,200 pounds of trash from the park, it is looking a lot better. We also had some Weed Warriors who started freeing trees from English ivy!

March 8 cleanup at Indian Spring Restoration site at Flower and Granville by Ed Murtagh
Thanks to everyone who came out and helped us get this park and restoration site, the headwaters of Long Branch, poised for spring growth without the trash and pollutants that would have been carried downstream into the rest of Long Branch. The restoration area, which has 5 stone stormwater retention ponds and hundreds of native plants installed by the Parks Dept, is worth a visit to see the investment the County is making in our watershed.
Join FOSC
Sligo Creek connects us
Become a FOSC member 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 monthly FOSC newsletter.
You can make a donation, either online here or using the button below (both are simple and secure), or by check to FOSC, P.O. Box 11572, Takoma Park, MD 20913. Thank you!
FOSC Action Hub

Fall 2026 Top Invasives
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- English ivy
- Porcelainberry
- Bush honeysuckle
- Multiflora rose
- Wintercreeper
- English ivy
- Porcelainberry
- Bush honeysuckle
- Multiflora rose
- Wintercreeper
Check out the Invasives page to see the other side of this postcard, and learn more about invasive plants that are going into the park from yards around the watershed. Do some look familiar? If you have them in your yard, please dig them out and replace them with native plants that provide food and shelter, and host the larvae of beneficial pollinators.

FOSC on iNaturalist
Pine siskins at Wheaton Branch ponds
(Photo 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



