Person, Place or Thing?

Can you guess what I am? I never get hugged, but I might get squeezed I could remind you of a John Steinbeck novel My bunch isn’t related to the Bradys Sometimes I have seeds I’m often green, red, white or purple I grow best in warm weather You can find me in Napa Valley My vine sometimes spreads gossip I am a fruit I can be made into jelly, jam or juice