Plant FinderPlant Finder Graphic
Thunbergia alata
Thunbergia alata

Click to Enlarge

Zone
Zones 23-25, 27, H2
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Thunbergia alata

Black-Eyed Susan Vine
Acanthaceae
Perennials, Vines

THUNBERGIA

Tropical, typically twining plants noted for showy flowers. Some of the perennial sorts grow fast enough to bloom the first season and can be treated as annuals. Those grown as perennials are evergreen in mildest climates. In cooler part of range, tops may be killed by light frost, but roots usually stay alive to send up new stems. Provide rich, well-drained soil. Good greenhouse plants.

Thunbergia alata

From tropical Africa. To 10 ft., with triangular, 3-in., medium green leaves. Blooms all summer long; tubular flowers flare out to 1 in. wide, come in white and a variety of colors, all with purple-black throat. Start seed indoors; set plants out in good soil in a sunny spot as soon as weather warms. Display in hanging basket or window box, use as ground cover, or train on strings or low trellis.

You Might Also Like...

Caryota urens

Handsome single-stemmed palm grows to 50 ft. tall and 15 ft. wide in Southern California. A hardy, hig...

Ptychosperma macarthuri

Native to New Guinea. Grows to 10–25 ft. tall and 12–15 ft. wide, with several clustered t...

Stephanotis floribunda

From Madagascar. Twines to 15 to 30 ft. Waxy, glossy green, oval leaves to 4 in. long. Valued for inte...

Find Your Sunset Climate Zone

Find Your Sunset Climate Zone

View Maps Learn More

Advertisement