Helen Day Art Center is accepting submissions for its 24th annual outdoor sculpture exhibition from artists working in sculpture, public art, participatory and social practice. The exhibition is July 11 to October 14. Jurors are Lucas Cowen, curator at Rose Fitzgerald Kennedy Greenway Conservancy, and Sarah McCutcheon Greiche, public art consultant and curator. Deadline: February 28. More info at helenday.com/exhibitions/exposed-exhibit.