Tomorrow

Arboretum ambling

Scott Arboretum curator Andrew Bunting takes guests on a tour previously available only to arboretum interns. The guided walk looks at recent acquisitions and why certain plants are removed. Free. 500 College Ave., Swarthmore. 2:30 to 3:30 p.m. www.scottarboretum.org; 610-328-8025.

Tuesday

Phanatics

Philadelphia Phillies historian Rich Wescott signs books at Media-Upper Providence Free Library. Wescott serves on the Philadelphia Hall of Fame committee, and has written 18 books, including three editions of the Phillies Encyclopedia and Tales from the Phillies Dugout. Free. 1 E. Front St., Media. 7 to 8:30 p.m. 610-566-1918.

Saturday

Kids mean business

Enterprising young Swarthmore residents take to the streets during the Kids' Sidewalk Sale. Free admission. Borough Hall parking lot, Park and Dartmouth Avenues, Swarthmore. Noon to 4 p.m. www.swarthmorepa.org; 610-543-4599.

Continuing

Local colors

Watercolorist Kathy Johnston displays works at the Darlington Arts Center. Free. 977 Shavertown Rd., Boothwyn. 10 a.m. to 8 p.m. Monday through Friday, and 10 a.m. to 4 p.m. Saturday. Show runs through May 30. www.darlingtonarts.org; 610-358-3632.