Hedgerow was founded in 1923 by New York-based director and actor Jasper Deeter in Rose Valley, less than 3 miles from Media and Swarthmore. The theatre building, originally a gristmill built in 1840, seats 144 spectators after an early twentieth-century reconstruction designed by architect William Lightfoot Price. Other sources note, however, that the Theatre building was "erected in 1807 as a snuff mill and later rebuilt as a hand-weaving mill."[3] It is a contributing structure in the Rose Valley Historic District. Hedgerow's green room once showcased a staircase and table designed by Wharton Esherick, an acclaimed American craftsman. Located a half mile from the theatre is Hedgerow House, once used as housing for the residential company members as well as a rehearsal space, school, and office, accompanied by the costume and prop shops.
When at Swarthmore with a company of actors from the Provincetown Playhouse in the spring of 1923, Jasper Deeter, former Harrisburg newspaperman, took a stroll along Possum Hollow Road and came upon an old mill... Brushing past the cobwebs, Deeter walked inside to rest; some years earlier the mill had been used for amateur theatricals, and Deeter saw its possibilities. He severed relations with the Provincetown company, and with a troupe of six actors launched Hedgerow as a permanent repertory theater, its first production being George Bernard Shaw's Candida. Local people constituted most of the cast and provided scenery, props, and lights.
Today Hedgerow presents a well-rounded repertoire of significant plays, both tragedy and comedy. For one week in the latter part of July each year the theater stages a George Bernard Shaw Festival. In aiding Deeter with his advice and granting him special royalty arrangements, Shaw once said: 'I am interested in repertory theatres. That's where the whole thing is kept alive; in theaters such as the Malvern Theatre [in England] and in the Hedgerow Theater in the United States.'
— Federal Writers' Project, "Part III: Tours", Pennsylvania: A Guide to the Keystone State (1940)[3]
In 1931, Ann Harding purchased the Hedgerow Theatre building from Deeter for $5,000 and donated it to the company.
From 1990 to 2013, Penelope Reed assumed the artistic direction of Hedgerow. Reed's son Jared succeeded his mother as artistic director but in 2021 was replaced by Marcie Bramucci.
The company stages over two dozen productions annually, relying on members, volunteers, and the local community. Their Mainstage season offers diverse plays, including new works, farces and Shakespeare. The Horizons series frequently showcases new plays with younger company members. The company is committed to school tours, outreach programs, and features a Children's Theatre. Hedgerow provides fellowships for recent college graduates, offering practical experience in various theater disciplines. Hedgerow was awarded the Best New Play 2005 Barrymore Award for The Lives of Bosie by John Wolfson.