A Pint Plant Thunbergia grandiflora also known as Bengal Clock vine. This lovely vine grows 15 to 20 feet is hardy in zones 8a to 11 and has blossoms that can be 4 inches across. Grows in full or partial sun and keep moist throughout the summer. The 6 inch holly shaped soft leaves make this plant always look good. Blossoms from midsummer though the late fall. Feel free to browse my flower photo gallery online.