The way we talk about fruits and vegetables - vegetables are This means that while many of us would call rhubarb a fruit because it's used. See when your favorite seasonal fruits and vegetables are in season, at their peak of flavor, and often at the best price. You can also look up produce by seasons: spring, summer, fall, winter. Apples, late Rhubarb, spring and early summer. You'll find an alphabetical listing of fruits and vegetables and their harvest seasons. Or, look up produce by seasons (spring, summer, fall, winter, year-round). Apples, August Rhubarb, April through June. Rosemary, May.