Plant Profile: Thunbergia alata

The Black-eyed Susan vine is a vibrant tropical evergreen that is ideally cultivated as an annual, requiring replacement each year. Despite its name, it is not related to the black-eyed Susan flower (Rudbeckia hirta). This vine thrives in full sunlight with some afternoon shade, preferring rich, well-drained soil that maintains moderate moisture. As a twining vine, it benefits from support; therefore, it’s best to plant it near an arbor, trellis, or fence. Alternatively, you can enjoy its cascading growth from a hanging basket. While it can intertwine with other plants and serve as a groundcover, this method can be more challenging to manage. The vine can be propagated from seeds or stem cuttings, and in frost-free regions, it tends to reseed itself readily, which may lead to it becoming weedy. If you wish to keep the plants through the winter, consider planting them in containers that can be brought indoors.

Regarding pests and diseases, the Black-eyed Susan vine does not face significant issues. However, indoor specimens may be susceptible to spider mites, scale, or whiteflies.