How to Grow and Care for Thunbergias

Black-eyed susan vine (Thunbergia alata) is a vine species native to southern Asia, Madagascar, and Africa. This plant is called black-eyed susan vine because its blossoms resemble the black-eyed Susan. Both plants have bright yellow petals and black centers. Black-eyed susan vine is widely cultivated as an ornamental plant.

This tropical, evergreen shrub grows erect and blooms with bold dark blue or purple flowers through both summer and autumn, making it a lovely choice for hedges, borders, and walls. Though bush clockvine most commonly grows as a bush, it can be 'trained' to grow like a vine (as implied by the name).

Blue trumpet vine (Thunbergia grandiflora) is an evergreen vine native to China, India, and Mainland Southeast Asia. It is often cultivated as a houseplant in environments with temperate climates and widely naturalized. In Australia, it is considered to be a serious environmental weed.

If you’re going to try to grow mysore trumpetvine (Thunbergia mysorensis) at home, keep in mind that it’s a plant for warmer climates. Also, since it’s a climbing plant, you’ll need something sufficiently strong for it to clamber over.

Whitelady (Thunbergia fragrans) is a fragrant (hence the scientific epithet) herb that is cultivated for its white flowers in tropical and sub-tropical regions. It is an invasive species that has become a threat to native plant communities. Though cultivated as an ornamental, whitelady is more commonly found as a weed on roadsides, forest margins, plantation crops, and in thickets.