The Garden Club of Honolulu hosts its Oceans: Beyond the Reef-themed flower and botanical art show (Honolulu Museum of Art, June 23-25). “Mele on the Marina” summer concert series kicks off with performances by Kulāiwi band, ukulele player Kapono Wong and others (Hawaii Kai Towne Center, June 24). Celebrate Japan’s Obon holiday at Mō‘ili‘ili Summer Fest (University Avenue at Coyne Street, July 1).