Work It Out

My colours are green,red and black Come in a bunches and not in a sack I make a drink that is alcoholic in taste Sometimes I have seeds which are a waste My home country is anywhere that's hot Eaten with cheese certainly hits the spot I finish up in a supermarket for you to pick Don't like to be in a box gets on my wick One final clue then I'll give you the answer I'm eaten by all from doctor to dancer Once chosen there is for me no escape I am of course dear friend a humble grape