Last day to order from Chesapeake Natives and the North Beach House and Garden Club; proceeds benefit Native & Pollinator Gardens for the town. Pickup May 21 at farmers market (8am-noon). Find order form: northbeachmd.org.

Race an individual athlete or in teams in this community event on the B&A Trail. Benefits memorial scholarship fund. 7am, Severna Park Community Center, $45-50, RSVP: EmilysTriathlon.com.

7am-noon, Riva Rd. & Harry Truman Pkwy, Annapolis: aacofarmersmarket.com.

Choose from a variety of expert-guided hikes in this protected forest or explore the 1000+ acres on your own; historian Janice Hayes-Williams leads the Say My Name remembrance ceremony honoring patients at Crownsville State Hospital (10am & noon). 7am-3pm, Bacon Ridge Natural Area, Crownsville, RSVP: srlt.org.

Calvert County residents only. 8am-2pm, Mt. Hope Convenience Center, Sunderland: CalvertCountyMd.gov/Recycle

Learn about fossils, how to identify them and what they can tell us (ages 8+). 9am-noon, Cove Point Lighthouse, Lusby, $15, RSVP: calvertmarinemuseum.com.

Come to the museum for free black-eyed Susans (limit 3 plants/person) Bring a hand tool to dig out your chosen bunches, and a bag or bucket to carry them home. Board member and Master Watershed Steward, Bill Mitchell, will be on site to answer any gardening questions. 10am, Captain Avery Museum, Shady Side, donations encouraged: […]

Gardener, author and home cook Wendi Kiang-Spray demonstrates how to grow, purchase and cook with interesting vegetables. 10am-noon, Homestead Gardens, Davidsonville, free: homesteadgardens.com.

This two-day symposium features a roundtable of Sotterley descendants, a living history performance, a study of genealogy, and a guest from Maryland Public Television. 10am-3pm, Historic Sotterley, Hollywood: Sotterley.org.