Whitaker Music Festival at the Missouri Botanical Garden is an open-air, FREE concert. St. Louis Rotary Social on Wednesday, June 24, 2026.  Guests are encouraged to bring blankets or lawn chairs to sit on and are welcome to bring their own picnic supper or purchase dinner on site. Music begins at 7pm. Come early! Admission to the Garden is FREE after 5:30pm during the Festival. See website for more information.