Hyperion Supreme daylily has large 6½-inch yellow flowers with a slight green throat. The blooms that appear in early to mid season are delightfully fragrant and attract butterflies and hummingbirds. Although each flower lasts only one day, there are multiple buds on each stalk and several stalks on each plant. The buds open in series, so a single plant will continue to bloom for 2 weeks or more. It is easy to grow and does well in full sun to part shade.