Collocations for ripe - adj.

be, feel, look, smell, taste

really, very
a really ripe strawberry

fully, perfectly, quite
Make sure the plums are fully ripe before you eat them.
Some of the apples were not quite ripe.

almost, just, nearly
The crops were just about ripe.

ripe for the picking, ripe for the plucking, ripe for the taking (all usually figurative)
The army has withdrawn, leaving the country ripe for the picking.

Ripe is used with these nouns:
age, avocado, banana, berry, corn, fruit, tomato, wheat