How to Plant Thunbergia


Thunbergia is a genus of flowering vines and shrubs that contains more than 200 species. Native to tropical Africa and Asia, the two most commonly grown species in the U.S. are the Black-Eyed Susan vine (Thunbergia alata) and the trumpet vine (Thunbergia grandiflora), which is considered invasive in Hawaii and Australia. With morning glory-like flowers, these vines thrive in warm weather and quickly cover arbors and other support structures. Hardy to USDA zones 8 through 11, plant thunbergia in an area that provides afternoon shade.

Step 1

Pour a 3-inch layer of well-rotted manure onto the planting bed. Mix it to a depth of 6 inches with a gardening fork. Rake the soil until it is level.

Step 2

Dig a hole that is twice the width and the same depth as the nursery pot in which the thunbergia is growing. Tip the pot on its side and slide the plant from it.

Step 3

Place the thunbergia's roots into the planting hole. Fill the hole with soil. Pat the soil gently around the base of the plant to remove air pockets.

Step 4

Install a support structure, such as a trellis or arbor, for the thunbergia, or plant near a fence or wall. Install the trellis 6 inches from the thunbergia. Pound it 1 foot into the soil. Tie the thunbergia loosely to the trellis.

Step 5

Water the thunbergia to a depth of 6 inches. Keep the soil moist, not saturated, while the plant becomes established.

Step 6

Spread a 3- to 4-inch layer of mulch around the base of the thunbergia. Place the mulch in a 1-foot diameter around the plant.

Things You'll Need

  • Well-rotted manure
  • Gardening fork
  • Rake
  • Hammer or mallet
  • Plant ties
  • Mulch


  • Hawaii Ecosystems At Risk Project: Thunbergia Grandiflora
  • Floridata: Thunbergia Grandiflora
  • "Taylor's Master Guide to Gardening"; Roger Holmes, Rita Buchanan; 2001
Keywords: plant thunbergia, plant trumpet vine, plant flowering vines

About this Author

Victoria Hunter has been a freelance writer since 2005, specializing in gardening-related topics and the real estate industry. She is a former broadcaster and real estate agent who has provided audio and written services to small businesses and large corporations worldwide. She writes for, GardenGuides and ProFlowers, among others. Hunter holds a Bachelor of Arts in English/creative writing.