Thunbergia alata - Despite its common name, it has no relation to the Black-Eye Susans (Rudbeckia hirta) plants in full sun with some afternoon shade, in rich, medium moisture, well-drained soils.  As a twining vine, it does best with support so plant near an arbor, trellis, or fence, or consider admiring its trailing habit cascading from a hanging basket. It can twine among existing plants becoming a groundcover but can be more difficult to maintain this way.