Observer Editor, Free
“Neighborhood Nature Day: Sassafras Woods”: Washtenaw County Parks & Recreation Commission.
All invited to join WCPARC naturalist Shawn Severance in removing early spring invasive species to make room for native wildflowers that support pollinators. 1–3 p.m., Rolling Hills County Park, 7660 Stony Creek Rd., Ypsilanti. Free; $6 vehicle entry fee required. Preregistration required by emailing email@example.com, 971–6337.