Buy and enjoy fresh, chemical-free local produce at Sankofa Community Farm. Every Thursday. 3 p.m. to 6 p.m. Bartram’s Village apartments, 54th St. and Lindbergh Blvd. While there, check out Bartram’s Garden -- free to visitors daily. The garden is a 50-acre public park, an oasis in the city. Explore horticulture, the oldest surviving botanic garden in North America, an ancient riverfront, boating, fishing and “a place of untold histories.” Free, 9:30 a.m. to 4:30 p.m. Bartram’s Garden, 5400 Lindbergh Blvd., 215-729-5281 or bartramsgarden.org.