At the heart of Blossom is the Blossom Pavilion, situated at the base of a natural bowl. The architect for this award-winning structure, widely celebrated for its distinctive architecture and superb acoustical qualities, was Peter van Dijk, who also served as architect for the Blossom Redevelopment Project. The seating capacity of the Pavilion is now 5,700, and another 13,500 patrons can be accomodated on the expansive hillside lawn seating area.
Surrounding the Pavilion, the Blossom grounds encompass a number of other unique facilities. Near the Main Entrance from Steels Corners Road is Porthouse Theatre Company, a professional repertory company affiliated with Kent State University under the Kent/Blossom Theatre program.
In addition to the Blossom Pavilion, the main grounds include the Bandwagon Gift Shop, the Blossom Grille (open before and after each Festival concert), the Knight Grove (a party center accomodating groups of 25 to 450), and Eells Gallery, which is used by the Kent/Blossom Art program to exhibit works by regional and national artists.
Three landscaped gardens also are located on the main grounds. The Frank E. Joseph Garden was named in honor of the president of the Musical Arts Association at the time of Blossom's construction and opening. Emily's Garden was opened in 1992 to commemorate Emily (Mrs. Dudley S. Jr.) Blossom's many contributions to Blossom Music Center. New in 2003 was the addition of the Herbert E. Strawbridge Garden, named in memory of Musical Arts Association trustee and civic leader Herb Strawbridge. The Blossom Redevelopment Project redesign of Emily's Garden, as well as the design of the Herbert E. Strawbridge Garden, are by Michael Van Valkenburgh.