There’s still a little time left to pack a picnic, grab a blanket, and set up camp for a night of theater under the stars. Park yourself on the banks of the Charles for one — or both — of this summer’s offerings at the Publick Theatre (Christian Herter Park, 1175A Soldiers Field Road, Brighton, 617.454.1444). Noel Coward’s Hay Fever (through September 14) and Anton Chekhov’s The Seagull (September 7) are being performed in repertory. Everyone’s family is dysfunctional, but the Brits have stiff upper lips and the Russians have gloomy outlooks. Both plays are set on isolated country estates; each explores what happens when families have no choice but to deal with one another. Check out the dramatic cultural differences and be grateful you’re not related. Call 617.454.1444 or visit www.publicktheatre.com for tickets ($27 to $32; $50 to $60 for two-show season pass).