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THUNBERGIA alata

Image of Thunbergia alata

James H. Schutte

Family

Acanthaceae

Botanical Name

THUNBERGIA alata

Plant Common Name

Black-Eyed Susan Vine

General Description

Black-eyed susan vine is a tropical perennial vine, which is often grown as a tender perennial in temperate climates. This fast-growing African native has distinctly fuzzy, arrowhead-shaped, medium green leaves with winged stems. It is everblooming and produces many tubular flowers in shades of yellow, orange, apricot or white with nearly black centers.

Plant this vine in a site with full to part sun and well-drained soil. Partial sun is preferred where summers are hot. Black-eyed susan vine may be invasive in tropical regions. Plant it in hanging baskets, containers or along fences and trellises.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    11 - 15

  • Sunset Zone

    H1, H2, 23, 24

  • Plant Type

    Vine/Liana

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    5'-8' / 1.5m - 2.4m

  • Bloom Time

    Indeterminate

  • Native To

    Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Habit

    Vining/Climbing

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Yellow, Orange, Rose, Peach, Black

  • Flower Color Modifier

    Bicolor

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Hanging Basket, Mixed Border, Tropical, Vine

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Butterflies

  • Self-Sowing

    Yes