Kathy. This new Zill release is a sister of the Sweet Tart variety, and it lives up to the family name. A nice tree with good disease resistance that produces an exceptional tasting fiberless mango. Complex sweetness with hints of vanilla and just enough tartness to form a well balanced delight. It has an extended season, so you can expect fruits anywhere from June-September. Its yellow amber skin, and consistent growth make the tree almost as valuable as the fruit.