Note: This article has been updated, and will continue to be updated, to reflect cancellations due to the COVID-19 emergency.

Following state and federal directives intended to slow the spread of the new coronavirus, COVID-19, Rockville events, classes, programs, rentals and activities are canceled through April 30.

The 50th anniversary of Earth Day is Wednesday, April 22. Join the City of Rockville as we celebrate throughout the year with the Make Every Day Earth Day campaign – including the following activities and volunteer opportunities this spring:

March 23: Mayor and Council Issue Earth Month and Earth Hour Proclamation, 7 p.m. City Hall, 111 Maryland Ave.

March 24: Organic Lawn Care Talk: Canceled.

March 28: Rockville Tree Giveaway: Postponed. Check back for new details as they become available.

April 1-2: Montgomery County Energy Summit: Rescheduled for Nov. 17-18. 8 a.m.-5 p.m. in Silver Spring. Learn more at

April 2: Rockville Brewshed: Green Happy Hour Campfire: Canceled. 6:30-7:30 p.m. Croydon Creek Nature Center, 852 Avery Road. Enjoy a beer or two while you learn about the City of Rockville’s sustainability efforts and programs, environmental volunteering opportunities and upcoming events. Must be 21 or over. Registration opens Thursday, March 5. Register for course #13293 at

April 7: Arbor Day Celebration: Canceled. 1 p.m. Woodley Gardens Park, 900 Nelson St. Rockville will mark Arbor Day and 31 years as a “Tree City USA” with a tree planting ceremony.

Looking to spend more time in nature? Check out Croydon Creek Nature Center‘s Little Acorns,  Nature Tots, Outdoor Science Club or Nature Lab programs. Planning for summer? Sign up for a CCNC camp before they fill up.

April 18: 31st Annual Potomac River Watershed Cleanup: Canceled. Cleanup sites include:

  • Croydon Creek Nature Center, 852 Avery Road, 9 a.m.–noon. (Simply show up; no registration required.)
  • Twinbrook Community Recreation Center, 12920 Twinbrook Parkway, 9:30-11 a.m.
  • Maryvale Park, 812 First St., 10 a.m.-noon.
  • RedGate Park, 14500 Avery Road, 10 a.m.-noon.

City staff will greet volunteers. Gloves and bags will be provided. Student Service Learning hours are available. Children under 14 must be accompanied by an adult. Bring water and wear sturdy shoes. For more information, or to register, email

April 18: Stream Cleanup Meetup: Canceled. Noon-2 p.m. at Saints Row Brewing, 1211 Taft St. Join Croydon Creek Nature Center and the Environment Commission for a family-friendly meetup after the morning stream cleanups. Open to all. Food onsite. Beer specials for volunteers over 21.

April 19: Science Day: Canceled. Noon-5 p.m. at Montgomery College, Rockville campus, 51 Mannakee St. Visit the Croydon Creek Nature Center table. Free. Learn more at

April 25: Lincoln Park Community Outdoor Yard Sale: Canceled. 8 a.m.-noon in the Richard Montgomery High School parking lot, 250 Richard Montgomery Drive.

April 25: Prescription Drug Take-Back Day: Canceled. 10 a.m.-2 p.m. at the Rockville City Police Station, 2 W. Montgomery Ave. Drive up and drop off unused or expired medications so that they are safely disposed of and kept out of our environment. For more information, call Cpl. Kevin McBride at 240-314-8364.

April 25: Spring Festival with Native Plant Sale: Canceled. 10 a.m.-noon at Croydon Creek Nature Center, 852 Avery Road.

May 2: Green Your Backyard Information Session: Canceled. 9:30-11 a.m. at Croydon Creek Nature Center, 852 Avery Road. Learn how to save money, help wildlife and reduce pollution with environmentally friendly landscaping. Register for course #13323 at or email with your name and address.

May 3: Invasive Plant Pull, 1:30-4:30 Croydon Creek Nature Center, 852 Avery Road.

Check back for more events as they are scheduled throughout the year.

For environmental news and events, and tips for helping the environment year-round, sign up to receive the city’s Environment and Sustainability quarterly newsletter in your inbox. Visit and select “Environment and Sustainability.”