Plum skin is thin, taut, smooth, and delicate, ranging in color from dark purple, almost black, ruby red, bright green to golden amber. Plums are a versatile culinary ingredient well suited for fresh, cooked, and preserved preparations. Plums have a sweet-tart flavor that complements both sweet and savory dishes. Plums are rich in antioxidants, a good source of vitamin C, calcium, fiber, and potassium.