Black-eyed Susan vine (ANNUAL VINE)

Flowers of black-eyed Susan vine.

Black-eyed Susan vine is an annual vines with orange-yellow flowers that resemble black-eyed Susans.  This vine is an annual and climbs by twining. 

This plant has some cultivated varieties. Go to list of cultivars.

 

Botanical name:

Thunbergia alata

All Common Names:

Black-eyed Susan vine

Family (English):

Acanthus

Family (Botanic):

Acanthaceae

Tree or Plant Type:

  • Vine

Native Locale:

  • Non-native

Landscape Uses:

  • Container,
  • Mixed border,
  • Screen

Size Range:

  • Large plant (more than 24 inches)

Light Exposure:

  • Full sun (6 hrs direct light daily),
  • Partial sun/shade (4-6 hrs light daily)

Hardiness Zones:

  • Zone 10,
  • Zone 11

Soil Preference:

  • Moist, well-drained soil

Season of Interest:

  • Mid summer,
  • Late summer,
  • Early fall

Flower Color & Fragrance:

  • Orange,
  • Pink,
  • Red,
  • White,
  • Yellow

Shape or Form:

  • Vining

Growth Rate:

  • Fast

More Information:

Size and Method of Climbing

This annual vine can grow up to 8 feet in a season.  It is a twining vine.   Twining vines climb by twisting their stems or leaf stalks around a support.  This type of vine grows well on trellises, arbors, wires or chain-link fences.

Plant Care

This plant needs full to partial sun and a consistent supply of water.

Disease, pests, and problems

No common serious problems.

Native geographic location and habitat

Native to tropical Africa.

Leaf description

Leaves are opposite and coarsely toothed, triangular in shape with winged petioles.

Flower description

Flowers are orange-yellow with dark throats.

Fruit description

The fruit is a beaked capsule; not ornamentally important.

Cultivars and their differences

African Sunset black-eyed Susan vine  (Thunbergia alata 'African Sunset'):  Flowers are a mix of red, pink, salmon and ivory with dark throats.

Amber Eyes black-eyed Susan vine (Thunbergia alata 'Amber Eyes'):  Flowers are creamy yellow with dark throats.

Arizona Dark Red black-eyed Susan vine  (Thunbergia alata 'Arizona Dark Red'):  Flowers are red or red-tinged (variable colors) with dark throats.

Blushing Susie black-eyed Susan vine  (Thunbergia alata 'Blushing Susie'):  Flowers are shades of red, apricot, pink and ivory with dark throats.

Lemon A-Peel® black-eyed Susan vine (Thunbergia alata 'Lemon Star'):   Flowers are lemon yellow with dark throats.

Spanish Eyes black-eyed Susan vine (Thunbergia alata 'Spanish Eyes'):  Flowers are a mix of colors (yellow, red, salmon, apricot) with dark throats.

Superstar Orange black-eyed Susan vine  (Thunbergia alata 'Superstar Orange'): Flowers are orange with dark throats.

White-flowered black-eyed Susan vine (Thunbergia alata 'Alba'): Flowers are white with dark throats.

 

 

Location of Thunbergia alata (Black-eyed Susan vine (ANNUAL VINE)) at the Arboretum

We do not seem to have this in our living collection.